【Compatible with】Check valve fit For Pools and Spas 【Features】Pool pump check valves offer excellent durability and corrosion resistance with good sealing performance. 【Better Material】These materials have good sealing properties and corrosion resistance to ensure that the valve effectively prevents water leakage in the closed state. 【Function】The check valve is able to regulate the output water flow direction and water flow rate of the pool pump, so that it can flow to different pipes or equipment as needed. 【Customer Notice】Promptly respond to after-sale questions within twenty-four hours to provide you with a good shopping experience.