Sell One Way Stainless Steel Check Valve for Aquarium Co2 System best price

One Way Stainless Steel Check Valve for Aquarium Co2 System / Air Pump Protect Description 100% brand new and high quality. Material:Stainless steel Color:As the picture shown Size: 4 cm x 0.8cm / 1.6'' x 0.3'' Suitable for CO2 supplying system in fish tank, aquarium and others. 1 it 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. 2 when used in the Ozone generator, it can prevent the Ozone from flowing back to the air pump and eroding the propeller. 3 it can protect the power head from the water flowing back which is caused by power cut. Reminders: 1) There may be a 1 – 3 cm difference due to manual measurement. 2) Due to monitor settings and lighting conditions, the item color may vary from the images shown. Package Included: 1 x Stainless Steel Check Valve