Danco 72639 Relief Valve Repair KitHighlights: Plastic relief valve and guide. Relief valve repair kit. A 36 a closet kit. 4. 5 gpf standard (white relief valve) for use on all diaphragm type exposed or concealed regal valves and pre 1997 royal valves. Contains a 19 a relief valve, a 15 a molded disc, a 156 a diaphragm and a 163 a plastic guide. Oem reference no. 3301036. Fits sloan valves. Flush valve repair kit. Carded