Conbraco 40-500-02 Major Repair Kit for 1/2"-1" PVB Backflow Preventer

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Complete major repair kit for Conbraco/Apollo 40-500 Series pressure vacuum breakers. For 1/2"-1" PVB models, this genuine kit restores worn internal parts to maintain backflow pro tection. Kit includes: check spring, float, float disc, guide stem, float spring, cap O-ring, screw, check guide, washer, seat disc, seat holder. Compatibility: for Apollo/Conbraco 40-500 Series PVB, fits 1/2"-1" model sizes used in irrigation and plumbing systems. Function: replaces worn internal parts to restore check valve operation and prevent back-siphonage into potable water. Quality: genuine Apollo/Conbraco parts made in the U.S.A. for reliable field service and long-term durability. Service notes: includes IOM and submittal documentation on the product page; recommended for professional plumbers or experienced DIY - shut off water and relieve system pressure before servicing. This kit supplies the commonly replaced internal components needed for major servicing of 40-500 Series PVBs. Use the included documentation to confirm fit and follow safe service procedures to protect your system and potable water. Show more