4 x Air Pump Plastic Non Return Check Valves Red Clear For Aquarium Tank C5D1

ITEM NAME:4 x Air Pump Plastic Non Return Check Valves Red Clear For Aquarium Tank C5D1 4 x Air Pump Plastic Non Return Check Valves Red Clear For Aquarium Tank C5D1 Product Name : Air Check Valve;Use for : Aquarium,Fish Tank Color : Red,Clear;Material : Plastic Hole Outer Diameter : 4.5mm/ 0.177";Overall Size : 53 x 14.5mm/ 2.1" x 0.57" (L*Max. D) Weight : 15g 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. Package Contents : 4 x Air Check Valve Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.