4", 175 PSI, Lead-Free, Stainless Steel, Reduced Pressure Zone Assembly, Backflow Preventer with Outside Stem and Yoke Resilient Seated Gate Valve

Extremely Compact Design; 70 Percent Lighter than Traditional Design; 304 (Schedule 40) Stainless Steel Housing and Sleeve; Groove Fittings Allow Integral Pipeline Adjustment; Patented Link Check Provide Lowest Pressure Loss; Unmatched Ease of Serviceability; May be Used for Horizontal N Pattern or Z Pattern Installation; Replaceable Check Disc Rubber; Lead-Free

Backflow Preventer; Type Reduced Pressure Zone Assembly; Nominal Size 4 Inch; End to End Distance 33-3/4 Inch; Body Material Stainless Steel; Disc/Poppet Material Elastomer (EPDM, Silicone and Buna-N); Spring Material Stainless Steel; Temperature Rating 33 to 140 Deg F; Pressure Rating 175 PSI; Inclusions/Features Housing and Sleeve, Elastomer, Link Check, Check Disc, Test Cock, Pin and Fastener, Spring, Outside Stem and Yoke Resilient Seated Gate Valve; Application Fire Protection, Potable Water; Applicable Standard ASSE 1013, AWWA C551-92, CSA B64.4, NSF/ANSI 61G, UL (Canada and US), FM; Lead-Free