ITEM NAME:Stainless Steel Check Valve One Way Aquarium CO2 Diffuser Regulator FT 100% brand new and high quality Can prevent the aquarium from the water flowing back, which is caused by the decrease of CO2 pressure,and keep the function and service life of CO2 bottle. When used in the Ozone generator, it can prevent the Ozone from flowing back to the air pump and eroding the propeller. It can protect the power head from the water flowing back which is caused by power cut. Fits standard aquarium CO2 pipe(4mm) internal diameter. Material: Stainless steel Size(L*W):40mm x 4mm(approx) Color: Silver Quantity:1 pcs Note: Please allow 1-3mm error due to manual measurement..Can prevent the aquarium from the water flowing back, which is caused by the decrease of CO2 pressure,and keep the function and service life of CO2 bottle. Stainless Steel check valve x 1. Material: Stainless steel.
