So your Febco pressure vacuum breaker needs some TLC? This 905-052 765 Check Valve Assembly Repair Kit has exactly what you need to get things running smoothly again. This isn't some cheap knockoff - it's the real deal that perfectly fits Febco 1-inch to 1-1/4 inch Model 765 Pressure Vacuum Breakers. The kit includes three crucial pieces: the holder, spring, and retainer, all made from top-quality materials that can handle the pressure. The rubber, plastic, and steel components are built to resist corrosion and wear, so you won't be doing this repair again anytime soon. Dealing with water leakage? This kit helps rebuild your relief valve properly to stop those annoying drips and protect your clean water supply from contamination. The best part? You don't need any special tools or plumbing expertise to install it. Just shut off your water supply, remove the old worn-out parts, clean everything up, and pop in these new components. It's way cheaper than replacing the whole pressure vacuum breaker and saves you both time and money. Perfect for DIY homeowners or professional plumbers who want a reliable fix without the hassle.