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This total relief valve repair kit provides all the parts necessary to repair or replace the relief valve on a 3/4 inch reduced pressure zone assembly backflow preventer, model 009M3. This kit consists of relief valve assembly, seat, seat O-ring, cover O-ring, sensing passage-ring, upper stem O-ring, and relief valve spring.
Total Relief Valve Kit for 3/4 IN Reduced Pressure Zone Assembly 009M3