10pcs Durable Non-Return One Way Check Valve CO2 Aquarium Fish Tank Air Pump

Store category Store category\n--\nBusiness, Office & Industrial\n--Vehicle Parts & Accessories\n--Home, Furniture & DIY\n--Health & Beauty\n--OthersProducts' ImagesDescription\n10pcs/lot Durable Non-Return One Way Check Valve CO2 Aquarium Fish Tank Air Pump\nDescription:\nGreat one way check valve for aquarium air pump\nProtect you air pump by preventing aquarium water from back siphoning during a power outage.\nSmall and compact / Made of durable plastic\nIt's easy to install\nCompatible with standard aquarium air pipe of 4mm inner diameter These are great check valves for aquarium air pump.\nThey can prevent the water in aquarium from flowing to the air pump.\n \nSpecification:\nCompatible with standard aquarium air pipe of 4mm inner diameter\nFull Length: Approx. 4.3\nColor: Red\n \nPackage Included: \n10 x one way check valve\n\n--Payment\n--Shipping\n--Terms of sale\n--Return\n--Contact us\n--Our service timePayment\nWe can accept Paypal, Google Pay, A.