Check Valve:

This precision made valve is designed to protect aquarium air pumps by allowing air to pass freely only in one direction.

It prevents water being siphoned back into the air pump during power failure or whilst performing routine maintenance.

The port size of check vavle is 4mm. 

Using Instructions:

1. Cut a suitable length of airline so that it can be easily connected to the air pump and aquarium filter or ornament.

2. Locate a convenient position in the airline tubing for the Check Valve and cut airline tubing.

3. Insert the Check Valve into the tubing so that the ARRow points towards the aquarium.

4.Check all airline is firmly attached.

5. Connect air pump to the mains supply.

 We offer one month warranty .

If there is any quality or packing problem,

1. you can return it back anytime in one month since the date of  receipt.

2. Or we would like to ask you pictures about the problem, then put the candidate in the next order and ship with the next order to you together.

Our factory has been founded in 1989 in Jiangxi province, and set a sales branch in Guangzhou in 2003.

As a professional manufaturor, we specialize in aqaurium accessories, major in air stone, fish net and plastic products, which made by high-quality and natural material, all of them are super quality with a competive price.

We have the right to export and import, series products are exported to all around the world. Kinds of new products are developed to satisfy the market and customer demand.

Hereby we warmly hope people interested in aquarium all around the world to work together and creat brilliant future.