Stainless Steel CO2 Way Check Valve For Aquarium Co2 System Aquarium CO2 Diffuser and P

Description: Material: Stainless steel Color: As the picture shown Size: 37.1x 7.9mm / 1.6 \\\'\\\' x 0.3 \\\'\\\' Feature: Suitable for CO2 supply system in fish , aquarium and others. it can prevent the aquarium from water flowing back, which is caused by the decrease, and keep the and service life of Carbon dioxide bottle. when used in the generator, it can prevent the from flowing back to the pump and eroding the propeller. it the power from the water flowing back which is caused by power cut. Package Included: 1pc x Stainless Steel Check Valve