Jandy 7305 Pool Check ValveTrusted One Way Flow Protection for Pool & Spa Plumbing Systems The Jandy Check Valve (Part #7305) is a professional grade pool plumbing check valve designed to prevent water from flowing backward through pool and spa circulation systems. By allowing water to move in only one direction, this valve helps protect sensitive pool equipment and maintain stable system operation. Check valves like the Jandy 7305 are a critical component on equipment pads