Prevent water back flow in your in line coffee brewers and other beverage equipment. Stainless Steel, Double ball valve. Meets commercial codes for beverage and soda systems. The Inlet and the Outlet are 1/4" FPT (Female Pipe Thread) Approved under ASSE 1032 Color: Silver Dimensions: INLET/OUTLET 1/4" FPT Chudnow Mfg. Model # S470D-FP4FP4 Back Flow Preventer, As of 2-28-2025, it is the same item but it is not labeled NSF 18, ASSE 1032.

• Chudnow ASSE 1032 ball check valves S470 series are all stainless steel
• All internal parts are interchangeable

H:BFS, ARCO 380866