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Apollo™ 4ALF20A03 Reduced Pressure Principle Backflow Preventer, 4 in Nominal

Apollo™ 4ALF20A03 Reduced Pressure Principle Backflow Preventer, 4 in Nominal, OSY Flanged, 175 psi, 33 to 140 deg F, Reduced Pressure Backflow, 304 Stainless Steel Body, Domestic
