10 Pcs 5mm Dia Aquarium Fish Tank Air Pump Non-Return One Way Check Valve
10 Pcs 5mm Dia Aquarium Fish Tank Air Pump Non-Return One Way Check Valve. 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. While we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.