3 Review(s)

Feature: * The Pneumatic Check Valve can prevent the aquarium from water flowing back, which is caused by the decrease, and keep the function and service life of Carbon dioxide bottle. * When used in the Ozone generator, air check valve can prevent the Ozone from flowing back to the air pump and eroding the propeller. * Aquarium non return check valve can protect the power head from the water flowing back which is caused by power cut. * Single check valve is easy to install, requires no additional tools and can be attached to any place you like in seconds. * These Stainless Steel One Way Check Valves are suitable for CO2 supply system in fish tank, aquarium and others. Specification: Material: Stainless steel Color: As the picture shown Size: 37.1x 7.9mm / 1.6 '' x 0.3 '' Package Included: 1pc x Stainless Steel Check Valve