1.5" Brass Check Valve for Air Compressor & Sump Pump - Heavy Duty One Way Water Flow Control - Ideal for Aquariums, Fish Tanks & Fishing Tackle Systems - Prevents Backflow in Water & Air Applications

This check value can be used to prevent water backflow from damaging front-end air pumps or other product equipment. Perfect for aquarium, fishing tackle shop, etc. Features:1. Prevent water backflow from damaging front-end air pumps or other product equipment. 2. Non return air pump safety valve, an essential accessories of pump. 3. Greatly protect the oxygenation pump from damaging by water retrograde into pump. 4. Prevent the risk of water returning when the pump is shut down and stopped working.5. Suitable for aquarium, fish tank, fishing tackle shop, etc. Specification:Item Type: Aquarium Check ValveMaterial: PlasticOptional Color: White, Red, BlackQuantity: 10PcsItem Size: 10 * 10 * 3cm / 3.9 * 3.9 * 1.2inchPackage Weight: Approx. 30gPackage List:10 * Aquarium Check ValveNotice:One check valve is required for each outlet. Two-head air pump requires two check valves.