Top 10 Sand Filter Manufacturers and Factories in China (2026)

China has established itself as a major global production hub for swimming pool equipment, offering a wide range of products, including sand filters, pool pumps, salt chlorinators, pool lights, pool cleaners, and complete filtration systems.

For distributors, brand owners, contractors, wholesalers, and large-scale retail buyers, sourcing directly from reliable Chinese sand filter manufacturers offers significant advantages regarding product variety, OEM/ODM customization, production capacity, and overall procurement costs.

However, it is important to note that not all companies advertising themselves online as "manufacturers" actually own their own production facilities. Therefore, when selecting a Chinese sand filter supplier, buyers should carefully evaluate factors such as manufacturing capabilities, product quality, certifications, export experience, customization options, and after-sales service.

This article profiles 10 Chinese manufacturers and factories active in the pool filtration and water treatment sectors to help global buyers gain a better understanding of the market for sand filters in China.

Comparison of Top 10  China's Sand Filter Manufacturers

Note: This article is intended primarily as a reference for sourcing from Chinese sand filter suppliers; it does not constitute an official industry ranking or a certified ranking. Buyers are advised to verify the latest factory details, product certifications, production capacity, and commercial terms directly with the suppliers before making a purchase.

1. HOTOOK – OEM/ODM Sand Filter Manufacturer in China

Year Established: 2006

Location: Shenzhen, Guangdong, China

Key Products: Fiberglass sand filters, gelcoat sand filters, salt chlorinators, pool lights, and other pool equipment

Business Model: OEM / ODM / Wholesale

Website:https://www.hotook.com/

HOTOOK is a pool equipment manufacturer serving the global market. In addition to producing sand filters, the company offers a comprehensive portfolio of pool equipment products.

HOTOOK’s product range includes top-mounted and side-mounted sand filters, as well as other filtration products; the lineup also covers pool pumps, salt chlorinators, pool lights, and related pool equipment.

A distinct advantage for B2B buyers is the ability to source multiple categories of pool equipment from a single manufacturer, eliminating the need to find different factories for each product type.

HOTOOK Sand Filter Product Range

HOTOOK’s sand filter product line includes:

Fiberglass sand filters

Gelcoat sand filters

Top-mount sand filters

Side-mount sand filters

Residential pool sand filters

Commercial pool sand filters

Pool filtration systems

Options regarding tank size, valve configuration, and product specifications are available to suit different pool capacities, flow rate requirements, and target markets.

Why Choose HOTOOK?

OEM & ODM Sand Filter Customization

HOTOOK provides OEM/ODM customization support for clients with their own brands and for pool equipment distributors.

Customization options include:

Brand logo

Product labeling

Tank color

Product packaging

Outer carton design

Product configuration

Product specifications

Specific customization scopes and Minimum Order Quantities (MOQs) are subject to confirmation based on the specific model.

One-Stop Pool Equipment Supply

HOTOOK manufactures more than just sand filters.

Its product portfolio also includes:

Pool pumps

Salt chlorinators

Pool lights

Pool water treatment equipment

Pool accessories

Brands and distributors looking to build a complete pool equipment product line can source multiple categories from a single manufacturer, thereby reducing supplier management costs.

Factory-Direct B2B Supply

HOTOOK operates as a manufacturer with established product development and production facilities in Shenzhen.

Its product portfolio includes swimming pool equipment—such as sand filters—and the company provides both standard product supply and customization services to overseas B2B clients.

For buyers, this means HOTOOK offers more than just standard products; the company can facilitate the entire procurement process, ranging from product selection and customization to packaging and delivery.

International Market Support

For overseas buyers, manufacturing capability is only one factor in selecting a supplier.

Packaging, product documentation, certification requirements, logistics arrangements, and after-sales support are equally critical.

HOTOOK has a long-standing presence in the international market for swimming pool equipment and supports overseas clients with both product procurement and customization.

HOTOOK Sand Filter OEM Purchasing Information

If you are considering sourcing private-label sand filters from HOTOOK, the following key information should be verified:

Note: MOQ, sample costs, lead times, warranty terms, and certifications may vary depending on the specific product model and target market; final commercial terms should be confirmed with HOTOOK prior to placing a formal order.

Who Is HOTOOK Best For?

Pool Equipment Brands

Ideal for brands looking to develop their own private-label sand filters and a comprehensive line of pool equipment products.

Distributors & Wholesalers

Ideal for distributors and wholesalers requiring a stable supply and a wide range of pool equipment categories.

Large Retailers & Supermarket Buyers

Ideal for large retailers and supermarket buyers looking to source standardized pool equipment and engage in private-label projects.

Engineering Contractors

Ideal for pool engineering firms and contractors looking to source sand filters, pumps, salt chlorinators, and other pool equipment.

Professional Purchasing Companies

Ideal for professional purchasing companies seeking to consolidate their supplier base and centrally procure various categories of pool equipment.

2. Poolking

Poolking is a manufacturer of swimming pool filtration and water treatment equipment based in Guangdong, China.

Its product range includes sand filters, DE filters, cartridge filters, water pumps, and other related pool equipment.

According to its public corporate information, Poolking operates manufacturing facilities in Guangzhou and Taishan, with a total production area of approximately 60,000 square meters.

Best for: Commercial pools, water treatment projects, large-scale filtration systems, and engineering projects.

3. LASWIM

LASWIM is a Guangdong-based manufacturer of pool equipment, offering products that cover filtration, circulation, water treatment, and other pool systems.

Its product lineup includes sand filters, pool pumps, underwater lights, salt chlorinators, and heat pumps.

LASWIM serves as a comprehensive supplier for buyers looking to source multiple categories of pool equipment in a single procurement.

Best for: Pool equipment distributors, system integrators, hotels, commercial pools, and engineering projects.

4. Emaux

Emaux is an established brand in the pool and spa equipment industry; its product line includes fiberglass sand filters, water pumps, and water treatment equipment.

Its products are sold across various international markets.

Best for: International distributors, pool equipment channel partners, and commercial pool projects.

5. Guangzhou Fenlin

Guangzhou Fenlin primarily supplies swimming pool and related leisure equipment, including sand filters and other pool-related products.

The company is based in Guangzhou, a city located in the Pearl River Delta—one of China's key manufacturing and supply chain hubs for pool equipment.

Best for: Pool equipment wholesalers, distributors, and buyers seeking a comprehensive range of pool equipment.

6. Cixi Handsome

Cixi Handsome is based in Zhejiang and primarily supplies pool filtration equipment and related products.

Its products cater to standard swimming pool filtration applications.

Best for: Residential pool equipment distributors and buyers of standard filtration products.

7. Hangzhou Maygo

Hangzhou Maygo specializes in pool equipment and filtration solutions, with a product range that includes sand filters and cartridge filters.

It is a suitable option for buyers looking to select specific filtration solutions tailored to different pool requirements.

Best for: Pool system integrators and pool equipment distributors.

8. Jiangsu Grand Grace

Jiangsu Grand Grace specializes primarily in filtration and water treatment equipment.

Compared to companies focused on residential pool products, its water treatment offerings cover a broader range of filtration and engineering applications.

Best for: Water treatment engineering firms and commercial filtration projects.

9. Guangzhou MIC Pool Spa

Guangzhou MIC Pool Spa is a Guangzhou-based supplier of swimming pool and spa equipment, with a product range that includes pool filtration equipment.

The company benefits from its location in the Guangzhou region, which boasts a mature supply chain for pool equipment.

Best for: Pool equipment wholesalers, distributors, and OEM procurement projects.

10. Nanjing Picolead

Nanjing Picolead specializes in water treatment and filtration solutions.

Buyers involved in commercial water treatment or engineering projects should consider this company as a potential supplier.

Best for: Water treatment companies, commercial filtration projects, and engineering contractors.

In conclusion

China is home to a vast number of sand filter manufacturers, ranging from specialized swimming pool equipment factories to large-scale water treatment equipment producers.

Selecting the right supplier depends on your specific requirements.

If you need standard residential sand filters, you should prioritize product variety, pricing, packaging, and supply stability.

For commercial pools or engineering projects, greater emphasis should be placed on filtration capacity, tank construction, pressure ratings, performance testing, and technical support.

For pool brands and distributors, capabilities regarding OEM/ODM, certifications, R&D, and long-term supply reliability are particularly important.

Among the manufacturers featured in this guide, HOTOOK, Poolking, Emaux, Fenlin, Maygo, and Cixi Handsome focus primarily on swimming pool equipment, whereas KHN, Jiangsu YLD, and Hunan Liming concentrate more on broader water treatment and engineering applications. Suitability should be assessed based on project needs rather than solely on company size.

When sourcing sand filters from China, it is advisable to compare at least three to five factories and request quotes from each based on identical specifications, quantities, certifications, packaging requirements, and delivery terms. This approach facilitates a more accurate comparison of total procurement costs and supplier capabilities.

FAQ

What is a sand filter manufacturer?

A sand filter manufacturer is a company with the capability to produce and manufacture sand filters, rather than merely a trading company that purchases products from other factories for resale.

Can I buy OEM sand filters from China?

Yes. Many Chinese manufacturers provide OEM/ODM services for international brands, distributors, and purchasing companies.

Customization options typically include brand logos, packaging, colors, and product specifications.

What is the MOQ for sand filters in China?

The MOQ (Minimum Order Quantity) depends on the manufacturer, product model, and customization requirements.

MOQs usually differ between standard products and private-label customized products.

Can I order one sample before a bulk order?

Many manufacturers offer samples.

Buyers should confirm sample costs, shipping fees, and whether the sample cost can be deducted from future bulk orders.

How long is the lead time?

Lead times depend on the product model, order quantity, customization details, and the factory's production schedule.

It is recommended to ask for separate lead times for samples and bulk production.

Which is better: fiberglass or plastic sand filters?

No single material is suitable for every scenario.

Fiberglass (FRP) offers superior corrosion resistance and durability, while plastic (HDPE) is lightweight and cost-competitive.

The final choice should be based on the specific pool application, operating pressure, installation environment, and budget.

How do I find a reliable sand filter factory in China?

We recommend verifying the following aspects:

Factory credentials + production capacity + product specifications + certifications + OEM capabilities + samples + QC processes + warranty + after-sales service.

Before placing a large bulk order, you can conduct a factory audit and sample testing.

Can HOTOOK provide private-label sand filters?

HOTOOK provides OEM/ODM services for pool equipment.

Specific customization details, MOQ, samples, lead times, and certifications need to be confirmed based on the specific sand filter model and target market.