A 7-meter acrylic swim spa is a specified piece of commercial wellness equipment, not an enlarged residential hot tub. The parameters that decide whether a unit performs in a hotel, a fitness club, a leisure center, or a residential community are the shell material, the length class, the swim-training and hydromassage configuration, the water-treatment package, the control set, and the certification that applies to the destination market.

MEXDA is the swim spa brand of Foshan Gaoming Yuehua Sanitary Ware Co., Ltd., a sanitary ware manufacturer founded in Gaoming, Foshan, Guangdong, China in 1995. The company builds swim spas, hot tubs and outdoor spas, sauna rooms, and steam rooms in a 50,000 m² facility with more than 200 employees and a nine-engineer R&D team, producing an annual output of 5,000 sets and exporting roughly 85% of that output to markets including the USA, EU, and Australia.

This guide follows the order in which a commercial buyer actually meets the specification: what the specification constrains, how the market is moving, how acrylic construction and the 7-meter class are defined, which parameters to compare line by line, how certification changes by market, and which configuration fits which project.

MEXDA WS-PC07A — a 7-meter acrylic swim spa specified with the KL2020 control system, four 2.2 kW water pumps, sand filtration, ozone and UV sanitation, and 57 jets.

Problem Definition: A Swim Spa Specification Is a Constraint Document

Commercial buyers rarely fail because they chose the wrong product category. They fail because the specification they approved did not match the site, the operating model, or the market's certification rules. A resort that runs a swim spa from early morning to late evening is buying a different specification from a residential community that runs the same unit a few hours a day, even when the physical footprint is identical.

The constraint pattern is consistent across project types. Four questions decide most commercial specifications, and each one narrows the model list before price is ever discussed:

• Length class and footprint. The published MEXDA range covers 4-meter, 5-meter, 6-meter, 7-meter, 8-meter, 10-meter, and 12-meter platforms. The length class determines lane behavior, guest throughput, and site preparation.
• Functional priority. A platform can be configured primarily for hydromassage (high jet count, water columns) or primarily for continuous swimming (a dedicated swim training system). The 7-meter class contains both, and they are not interchangeable.
• Water treatment and thermal load. The specification must state how the water is circulated, filtered, sanitized, and heated, because these determine day-to-day operating stability in an outdoor installation.
• Market compliance. A unit sold into the United States, the European Union, and Australia does not carry a single universal certificate. The applicable certification, number, and standard must be matched to the destination market and to the exact model in the purchase order.

The commercial scene data published for MEXDA swim spas assumes outdoor use in an open-air environment with UV exposure and a wide temperature range, and it lists the matched equipment as a filtration system, heating unit, circulation pump, LED lighting, and control panel. It also lists the operating requirements that buyers typically underestimate: anti-UV resistance, low-noise operation, corrosion-resistant components, and a weatherproof design. These are not marketing attributes. They are the line items that decide whether a specification is installable at a given site.

Industry Background: Where Commercial Demand Is Concentrating

The swim spa category is no longer a niche within the residential pool market. Third-party research places the global swim spa market at approximately USD 2.5 billion in 2024, with a projection to reach USD 5.2 billion by 2034 at a compound annual growth rate in the range of 7.5% to 8.5%. Regional concentration matters for specification planning: North America held a 38.2% global share valued at USD 1.99 billion in 2025, followed by Europe at 28.5%, while the Asia-Pacific region, led by China and Australia, accounts for roughly 20% of the global pool and spa market. Estimates of the growth rate differ by source, which is normal in this category, but the direction is consistent.

Two structural shifts are directly relevant to commercial buyers specifying acrylic platforms:

• Dual-zone hybrid configurations are the fastest-growing segment. Dual-zone designs separate the swim area and the spa area with independent temperature control, which fits hospitality and fitness operators who run a warm hydrotherapy zone alongside a cooler swim zone.
• Compliance is tightening rather than loosening. Safety requirements for whirlpool baths and spas in the European Union are governed by the EN IEC 60335-2-60:2023 standard. Buyers who plan multi-market rollouts should treat certification scope as a hard filter, not a formality.

Brand concentration in the category is moderate. Published market share data for 2025 places Master Spas in the 16–18% range, Endless Pools at 9–11%, and Hydropool at 6–8% of the global swim spa market. That leaves a large share of demand served by regional manufacturers and private-label suppliers, which is why parameter-level comparison, rather than brand recognition, is the practical evaluation method for most commercial projects.

The Two Core Specification Blocks: Acrylic Construction and the 7-Meter Platform

Every swim spa model in the current MEXDA specification set is listed with acrylic as the shell material, including the 7-meter WS-PC07A and WS-PC07A-T, the 8-meter WS-S08B and WS-S08CT, the 6-meter WS-S06CT, the 5-meter WS-PC05ST, and the 4-meter WS-S04, whose specification names a standard Chinese White Acrylic shell. That consistency matters when comparing suppliers: the material line is the starting point, but it is not the whole specification.

What the word acrylic has to carry in a commercial specification

On a commercial project, the material declaration is only useful when it is read together with the systems that surround the shell. A buyer evaluating an acrylic swim spa should be able to find the following items in writing, model by model:

• The shell material and finish as it appears on the specification sheet, including any named standard colour or sheet description.
• The number of control sets (one or two), because dual control sets appear on larger platforms such as the 8-meter WS-S08B and the 10-meter WS-S10-T.
• The water pump and filter pump ratings, the filtration type (cartridge, square filter, or sand filter with a stated vessel size), and the sanitation package (ozone, UV light, or both).
• Whether PU insulation is included as a line item, since insulation is part of the thermal specification rather than an accessory.
• Whether the model carries the certification required in the destination market, and whether that certification scope covers the exact configuration ordered.

Two of these points deserve emphasis because they are the most common source of mismatch. First, an acrylic shell can be described identically across two suppliers while the structural backing and reinforcement layer differ; buyers should ask for the reinforcement description in writing rather than assuming it from the material name alone. Second, if a specification names a specific control platform, that platform identity should appear in the purchase documentation, because field service, spare parts, and remote support all depend on the control set actually installed.

The 7-meter class: WS-PC07A and WS-PC07A-T

The 7-meter class is the point where a swim spa stops behaving like a large residential spa and starts behaving like scheduled commercial equipment. MEXDA publishes two 7-meter acrylic platforms, and their specifications diverge in a way that is worth understanding before any price discussion.

WS-PC07A is the hydromassage-weighted 7-meter platform. Its specification lists a KL2020 control system, four 2.2 kW water pumps (LP300), a 0.75 kW filter pump (JA100), one sand filter (Q500), six water columns, ozone, UV light, colorful lighting, ten water suction points, and 57 jets. The pump configuration — four water pumps driving the jet circuit — is the defining number here, because it sets how much hydromassage capacity the platform can deliver simultaneously.

WS-PC07A-T is the swim-training-weighted 7-meter platform. Its specification lists a control set with a 3 kW heater, a 2.8 kW swim training system at 380 V, a 2.2 kW water pump (LP300), a 0.75 kW filter pump (JA100), one square filter, two 5-inch LED lamps, two air adjusters, a combined UV and ozone unit, a Q500 sand cylinder, a stainless steel rail, and 62 jets. The critical difference is not the jet count. It is the dedicated 2.8 kW swim training system, which produces the counter-current flow that makes continuous swimming possible in a 7-meter footprint.

WS-PC07A-T — the swim-training configuration of the 7-meter platform, specified with a 2.8 kW (380 V) swim training system, a 3 kW heater control set, stainless steel rail, and 62 jets.

Both 7-meter models are listed for the same intended industries: hotel, fitness, leisure, residential communities, and resort. That is a deliberate statement about the platform, not a marketing claim — the same length class is used by a hotel running guest wellness sessions and by a fitness operator running coached swim blocks, and the choice between the two configurations follows from that operating model rather than from the length of the unit.

Selection Parameters: A Step-by-Step Comparison Method

The following sequence works for any commercial swim spa specification, and it is ordered so that each step eliminates models before the next step is applied.

1. Confirm the shell material declaration and finish. Confirm that the model specification states the material and any named standard shell colour. Do not accept a category-level statement as a substitute for a model-level one.
2. Fix the length class against the site and the operating model. The published range runs from the 4-meter WS-S04 through 5-meter, 6-meter, and 7-meter platforms to the 10-meter WS-S10-T and the 12-meter WS-EP3812T Plus and WS-130CIII. Length class is the first hard filter because it drives both site preparation and guest capacity.
3. Decide whether the platform is swim-weighted or hydrotherapy-weighted. Swim-weighted designs carry a defined swim training system: 2.8 kW at 380 V on the 8-meter WS-S08CT, the 6-meter WS-S06CT, and the 7-meter WS-PC07A-T, and 5.5 kW × 4 at 380 V on the 12-meter WS-EP3812T Plus. Hydrotherapy-weighted designs concentrate the specification in the jet and pump circuit.
4. Read the jet count together with the jet mix. Published jet counts across the range include 20 (WS-130CIII), 26 (WS-S04), 29 (WS-SP600-MS), 31 (WS-S08CT and WS-S06CT), 57 (WS-PC07A), 62 (WS-PC07A-T), and 98 (WS-S08B). Larger counts are typically paired with larger pump arrays, and the specification also distinguishes 5-inch massage jets from 1-inch circulating jets.
5. Verify the pump and filtration configuration. Water pump ratings across the range include 1.5 kW (LP200), 2.2 kW (LP300 and HSP2200), and 2.2 kW × 4 on the 7-meter WS-PC07A. Filter pumps include 0.25 kW (WTC50M), 0.35 kW (WCP350G), 0.75 kW (JA100 and WCP350G class), and a 750 W unit on the 6-meter WS-SP600. Filtration hardware includes cartridge filters, square filters, and sand filters in Q350, Q500, and Q700 vessels.
6. Confirm the heating and insulation specification for the exact model. The 3 kW heater (H30-R1) appears across many models; the 8-meter WS-S08B is specified with two 3 kW heaters, and the 7-meter WS-PC07A-T is specified with a control set including a 3 kW heater. PU insulation is listed as a line item on the 7-meter and 8-meter platforms. Where a heater is not itemized separately on a given model sheet, request written confirmation of the heating configuration for the ordered voltage variant instead of assuming it.
7. Identify the control set and how many sets are required. Published control systems include KL2020 and KL2022. Single-set platforms dominate the smaller classes, while the 8-meter WS-S08B and the 10-meter WS-S10-T are specified with two control sets. The number of control sets affects both operation and service planning.
8. Confirm the sanitation package. Ozone, UV light, or a combined UV and ozone unit appear as discrete line items, and several models pair sanitation with a sand filter. For an outdoor installation with public use, this package should be specified explicitly rather than left to the standard configuration.
9. Match certification to the destination market. This step is covered in detail in the next section, and it should be completed before commercial terms are agreed.
10. Agree the delivery parameters. MEXDA operates OEM and ODM production with full customization across the range, a minimum order quantity of 1 set, a lead time of 30–40 days, a monthly capacity of 500 sets, 100% testing, and remote after-sales guidance.

Parameter Table: 7-Meter and Adjacent MEXDA Platforms

The table below reproduces published specification values only. It is intended for like-for-like comparison, and it shows how widely the same nominal product category varies once length class and functional priority change.

All models in the table are listed by MEXDA for the same intended industries: hotel, fitness, leisure, residential communities, and resort. The table also illustrates a practical point for budget planning. Two units in the same length class can carry very different component counts — one sand filter or two, one control set or two, four water pumps or a single swim training system — and those differences, not the length alone, define the delivered scope.

Compliance Parameters by Market

Certification is a market-specific constraint. MEXDA's WS-CP2400 platform holds three separate certificates for three separate regions, and each one names a different issuing authority, certificate number, standard set, and certified scope. Buyers should treat these as the template for what to request from any supplier.

ETL certification for the WS-CP2400 outdoor spa, issued by Intertek under certificate number 3177783 against UL 1563:2025 Ed.7 and CSA C22.2#218.1:2025 Ed.3.

Three verification habits follow from this table. First, check the certificate number and the issuing authority directly rather than accepting a badge on a product page. Second, check the certified scope — a certificate issued for whirlpool spas, outdoor spas, or swimming pool and spa equipment describes a defined product boundary, and the buyer should confirm that the exact model, voltage variant, and configuration in the purchase order fall inside it. Third, check the market: a CE certificate under EN 60335-1, EN 60335-2-60, and EN 6223 does not substitute for the ETL certificate required in the United States, and the SAA certificate under AS/NZS 60335.2.60:2018 and AS/NZS 60335.1:2020 + A1 is specific to the Australian market.

Use Cases: Matching the Specification to the Project

MEXDA lists swim spa applications across leisure, fitness, residential construction, hospitality, the spa industry, hotels, and commercial places, in markets that include the United States, Australia, Canada, China, Germany, Spain, France, the United Kingdom, Portugal, India, and Mexico. The published project types are residential backyard pool, hotel spa facility, resort leisure center, and private wellness project, with a functional scope of hydrotherapy relaxation, recreational swimming, temperature-controlled leisure, and family wellness, and an operation mode of temperature self-regulation with an automatic filtration cycle.

Hotels and resorts

Hospitality projects prioritize availability and thermal stability over peak jet performance. The relevant specification signals are the heating configuration, the insulation line item, the sanitation package, and the number of control sets, because a hotel unit runs on a schedule rather than on demand. A 7-meter platform configured for swim training, such as WS-PC07A-T with its 2.8 kW swim training system and 3 kW heater control set, suits a guest wellness area where guests expect to swim against a current at a set temperature.

Commercial fitness

Fitness operators need repeatable swim conditions and a footprint that fits an existing floor plate. The swim training system rating is the governing parameter: 2.8 kW at 380 V on the 6-meter, 7-meter, and 8-meter training platforms, rising to 5.5 kW × 4 at 380 V on the 12-meter WS-EP3812T Plus, which is specified with a Q700 sand filter and a dedicated filtering jet circuit. Where space is fixed and multi-lane capacity is not required, the 7-meter class provides the counter-current swim function in a shorter envelope.

Residential communities and private wellness

Community and private projects generally prioritize compactness, low noise, and predictable maintenance. The 4-meter WS-S04 (26 jets, three 1.5 kW water pumps, ozone) and the 5-meter WS-PC05ST (2.8 kW swim training system at 380 V, sand cylinder Q500, ozone and UV) sit in this range. For these installations the outdoor working conditions matter: the published requirements include anti-UV resistance, low-noise operation, corrosion-resistant components, and a weatherproof design, and buyers should confirm the intended placement — above-ground or in-ground — with the supplier before site works begin, since site preparation is outside the product specification.

Leisure and hydrotherapy

Hydrotherapy-weighted projects concentrate on jet count, jet mix, and pump capacity. The 8-meter WS-S08B is the highest-density published example, specified with 98 jets, two control sets, four water pumps, two 3 kW heaters, two ozone units, a waterfall, four speakers, and 28 small LED lights. The 7-meter WS-PC07A takes the same logic into a shorter platform with 57 jets, four 2.2 kW water pumps, and six water columns.

WS-EP3812T Plus — a 12-meter acrylic platform specified with a 5.5 kW × 4 (380 V) swim training system, a Q700 sand filter, and a filtering jet circuit for commercial fitness use.

How MEXDA Supports a Commercial Specification

MEXDA's production model is built around customized commercial orders rather than fixed catalogue items. The company operates OEM and ODM production with full customization across the range, supported by a nine-engineer R&D team, a monthly capacity of 500 sets, an annual output of 5,000 sets, a minimum order quantity of one set, a lead time of 30–40 days, 100% testing, and remote after-sales guidance. Export markets are worldwide, with the USA, EU, and Australia as the main destinations, which is consistent with the three-market certification set described above.

A delivered example illustrates how these parameters work in practice. A construction contractor in France took delivery of 20 MEXDA swim spa units for residential and commercial leisure and fitness applications. The relationship has run for more than ten years, and the reported outcomes are reliable performance, a comfortable hydrotherapy experience, long-lasting durability, and constant temperature behavior. The related product platform for that project is the WS-130A III, an 8-meter swim spa specified with a 3 kW heater control set, a 2.8 kW × 2 swim training system at 380 V, a 1.5 kW water pump, a 0.75 kW filter pump, 20 jets, ozone, UV light, and a drainage system.

A delivered MEXDA swim spa — part of a 20-set supply to a French construction contractor for residential and commercial leisure and fitness use.

Third-party product documentation also describes MEXDA swim spas as integrating intelligent thermostatic control, endless-pool style swim functions, and ozone sterilization cycles — a useful cross-check when comparing the manufacturer's own published specifications against independent descriptions of the range.

Frequently Asked Questions

Which certifications should a commercial swim spa hold for US, EU, and Australian projects?

MEXDA's WS-CP2400 platform holds three separate market certificates. For the United States, it holds ETL certification issued by Intertek under certificate number 3177783, complying with UL 1563:2025 Ed.7 and CSA C22.2#218.1:2025 Ed.3, with the certified scope stated as outdoor spa, issued on 2025-10-29. For Australia, it holds SAA certification issued by SGS under certificate number SGS/220438, complying with AS/NZS 60335.2.60:2018 and AS/NZS 60335.1:2020 + A1, with the scope stated as swimming pool or spa equipment, issued on 2022-07-12 and valid to 2027-07-11. For the European Union, it holds CE certification issued by STU under certificate number STUESO021120220755HS, complying with EN 60335-1, EN 60335-2-60, and EN 6223, with the scope stated as whirlpool spas, issued on 2024-01-09. Separately, EU safety requirements for whirlpool baths and spas are governed by the EN IEC 60335-2-60:2023 standard. Buyers should confirm that the certificate scope covers the exact model, voltage variant, and configuration in the purchase order.

Can a 7-meter acrylic swim spa be customized for a specific project?

Yes. MEXDA operates OEM and ODM production with full customization across the swim spa range, supported by a nine-engineer R&D team and a monthly production capacity of 500 sets, with worldwide export markets. In practice this means a commercial specification can start from the project rather than from a fixed catalogue item: length class, jet layout, swim training system rating, control set, filtration class, and sanitation package can all be defined as a project configuration. One caution applies here — because certification is tied to a defined scope, a customized configuration should be checked against the applicable certificate before the order is confirmed, particularly when the voltage variant or the control set changes.

What specification variables drive the cost of a commercial swim spa?

MEXDA does not publish price bands, so cost should be compared through the parameters that visibly change the delivered scope. Across the published range, those variables include the length class (from the 4-meter WS-S04 to the 12-meter WS-EP3812T Plus and WS-130CIII); the number of control sets (one set on most models, two sets on the 8-meter WS-S08B and the 10-meter WS-S10-T); the number and rating of heaters (one 3 kW heater on many models, two 3 kW heaters on WS-S08B); the water pump array (three 1.5 kW pumps on WS-S04, four 2.2 kW pumps on WS-PC07A, and 2.2 kW × 2 plus 1.5 kW × 2 on WS-S08B); the swim training system rating (2.8 kW at 380 V versus 5.5 kW × 4 at 380 V); the jet count and mix (26 jets on WS-S04, 57 on WS-PC07A, 62 on WS-PC07A-T, 98 on WS-S08B); the filtration class (cartridge or square filters versus sand filters in Q350, Q500, or Q700 vessels); the sanitation package (ozone, UV light, or both); and the inclusion of PU insulation, stainless steel rails, and the number of LED lamps. Comparing quotations against this shared parameter list is the most reliable way to identify where the differences actually sit.

Can a buyer validate a unit before placing a volume order?

The minimum order quantity for MEXDA swim spas is 1 set, which allows a buyer to validate a specific configuration before committing to a volume program. Production quality control is stated as 100% testing, and after-sales support is provided as remote guidance. For commercial projects, validation should cover the parameters that cannot be assessed from a specification sheet alone: the actual swim resistance delivered by the swim training system, the operation of the control set, the noise level expected in an outdoor installation, and confirmation that the certification scope matches the destination market.

What is the production lead time and capacity for commercial orders?

MEXDA publishes a lead time of 30–40 days, a monthly production capacity of 500 sets, and an annual output of 5,000 sets, with a minimum order quantity of 1 set. For projects with fixed installation windows, such as hotel refurbishments or resort openings, these figures should be confirmed against the specific configuration at the time of order, because customized specifications and larger volumes can affect scheduling.

Conclusion: Specify the Parameters, Then Compare

An acrylic swim spa specification for commercial use comes down to a short list of verifiable parameters: the shell material declaration at model level, the length class, whether the platform is swim-weighted or hydrotherapy-weighted, the pump and jet configuration, the filtration and sanitation package, the control set, the heating and insulation line items, and the certification that applies to the destination market. The 7-meter class is the clearest example of why this matters — WS-PC07A and WS-PC07A-T share a length class and an intended-industry list, yet one is built around a four-pump, 57-jet hydromassage circuit and the other around a 2.8 kW swim training system and 62 jets.

Buyers who evaluate suppliers against this parameter list, rather than against brand familiarity or a single headline number, end up with specifications that can be installed, operated, and serviced as intended. MEXDA supports that process with OEM and ODM production, a one-set minimum order quantity, a 30–40 day lead time, 100% testing, and remote after-sales guidance, across a range that runs from 4-meter to 12-meter acrylic platforms for hotel, fitness, leisure, residential community, and resort projects.

WS-PC05ST — a 5-meter acrylic swim spa specified with a 2.8 kW (380 V) swim training system, a Q500 sand cylinder, and ozone and UV sanitation.