10 Pcs Check Valve 4mm PP Pump Aquarium 1 Way Water Stop Check Valve for Fish

Replacement: This one way check valve can be used to replace the broken check valve and fit perfectly, to prevent the backflow of gas or liquid Strong Pressure Resistance: The stop check valve has sufficient pressure bearing capacity and rigidity to meet actual use requirements within appropriate range High Performance: The check valve has good thermal performance, strong chemical stability, non toxic and odorless Item Type: Check Valve Material: PP Function: Connect the hose to prevent the backflow of gas or liquid Scope of Application: Fish , food and beverage, medicine equipment, chemical industry Size: Approx.4mmCelsius0.2in