Magic Plastics’ redesigned Compact Air Check Valve is ideal for all Spa, Jetted Tub and Pool applications. The Air Check Valve is equipped with a light ¼ lb. Stainless Steel Spring and a 100% Silicone Seal. The true compact design will save valuable space, especially where two valves are required in tandem. The redesigned internal components improve flow and reduce restriction, providing a quiet and smooth operation, virtually eliminating possible valve chatter during shutdown. Available in 1½˝ Slip – 2˝Spigot in PVC and Polycarbonate Clear for higher heat applications and improved clarity.