Aquarium Fish Tank One Way Non-return Air Pump Check Valves 42.5 x 13mm 4pcs
Aquarium Fish Tank One Way Non-return Air Pump Check Valves 42.5 x 13mm 4pcs. Overall Size: 42.5 x 13mm/1.7″ x 0.5″(L*Max.D) Fit For Hose Diameter: 5.5mm/0.2″ Package Content: 4 x Air Check Valves;Net Weight: 10g Double color check valve for your aquarium and fish tank. Protect you air pump by preventing aquarium water from back siphoning during a power outage.? Place in your airline tubing between your air pump and aquarium water to prevent water returning down the air line. Great one way check valve for aquarium and fish tank. While we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.