Features:

1, This sand filter is using of polymer polyester material, anti-corrosion, long service life;
2, The surface after sun treatment, suitable for any climate;
3, Health, environmental protection, to avoid direct contact with the body when installing fiberglass;
4, High pressure, good filtering effect;
5, Built-in exhaust;
6, Large drainage, sediment features, ease of maintenance and repair;
7. Six-cylinder multi-select feature sand valve for easier operation;
8, Overhead water distribution allows uniform distribution of water;
9, Can be accessed metric or imperial pipes.

Function:

1. FILTER: normal filtering.

2. BACKWASH: the filter discharge product accumulated dirt.

3. RINSE: Exclude dirt in the outfall.

4. RECIPCULATE: unfiltered water recycling.

5. WASTE: unfiltered, direct sewage.

6. CLOSED: Close all filter functions.

1. What is your warranty? And if I got wrong ones, how will you do with it?

A: If having wrong ones which cannot work, pls show us pictures, and we will replace the relative spare parts or a new one accordingly. If you wanna to refund, it also can be discussed.

2. What is your minimum order quantity?

A: The MOQ is 1PCS, but the quantity for OEM packages should be 100PCS or more.

3. Which payment terms you can accept?

A: We accept Western Union, Escow (credit card), TT ($30handling fee), Paypal (4.5% handling fee)

4. What are the shipping ways you can offer?

A: We can delivery the goods by air/express according to customers' requirements. We can send goods by Guangzhou port.

5. Do you make OEM or ODM?

A: Yes, we can provide all kinds of OEM / ODM packing and labels. 

Guangzhou Zhonghang Environmental Technology Co., Ltd was established in 2012. We are a manufacturer engage in Recirculating Aquaculture System, Raw Water Treatment System, Aquaculture project, and Aquatic engineering research. Our products include whole set of RAS, protein skimmer, automatic drum filter, uv sterilizer, biological filter, ozone generator, oxygen generator, PP fish tank, water pump etc. We have professional technical personnel to offer you professional service in your aquaculture system. And our product was salad well in the world. Please feel free to contact us for more information.