4" Backflow Preventer, Double Check, Lead-Free , Stainless Steel Body with Butterfly Valves Grooved Connections APOLLO 4ALF10A09

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4" Backflow Preventer, Double Check, Lead-Free , Stainless Steel Body with Butterfly Valves Grooved Connections APOLLO 4ALF10A09 FEATURES• Domestic Stainless steel body: 2 ½” – 8”• FDA epoxy coated ductile iron body: 10” & 12”• Easy maintenance – no special tools required• Snap-in check retainers: 2 ½” – 6”• Bolted-in checks: 8” – 12”• Low pressure loss as documented by an independent laboratory• Center stem guided TriForceTM check valves• Approved for horizontal (2 ½” – 12”) and vertical flow up (2 ½” – 8”)• US Patent Nos. 6,443,184; 7,025,085; 7,533,699• Made in the USA – ARRA Compliant PERFORMANCE RATING• Maximum Working Pressure 175 psi• Temperature Range 33 ° F – 140 ° F• Hydrostatic Test Pressure 350 psi APPROVALS• Sizes 2 ½”, 3”, 4”, 6”: AWWA C510• Sizes 2 ½” – 12”: ASSE 1015, CSA B64.5, FM, IAPMO, UL*, cUL* *UL and cUL installations must include indicating-type shut-off valves• Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California (2-1/2” - 8”)UPC: 670750549014 Show more