3″ Apollo RPLF-RA Reduced Pressure Principle Backflow Preventer Model# 4ALF-200-03 Flanged — OS&Y Gates 3" Apollo RPLF-RA Reduced Pressure Principle Backflow Preventer Model# 4ALF-200-03 Flanged -- OS&Y Gates quantity Add to cart Add to quote SKU: 195101 Category: Uncategorized Additional information Additional information manufacturer APOLLO