Main function: It can prevent reflux from the aquarium due to reduction and maintain the function and life of the carbon dioxide bottle. High quality materials: The non-return valve is made of stainless steel, which does not necessarily rust in the water and has a long life. Scope: Suitable for carbon dioxide feed systems in aquariums, aquariums, etc. Other applications: The check valve can prevent the aquarium from reflving water, which is caused by the Decrease, and maintain the function and life of the carbon dioxide bottle. Quality commitment: All products are new, if you have any questions, do not hesitate to consult them and our customer service will answer you at any time. Description: Material: Stainless steel < / p> Color: As in the image Size: 37.1 x 7.9 mm / 1,6 ’’ x 0.3 ’’ Package Included: 1PC x Stainless steel check valve
