Ames: 4" -  Total Rubber Kit (EPDM) for a M400 Reduced Pressure Zone / M500 Reduced Pressure Detector Assembly

Kit Includes:
2 Check Discs, 2 Check O-Rings, 2 Sleeve O-Rings, 2 E-Clips, Relief Valve Diaphragm, RV Piston, RV  E-Clip, and RV O-Ring
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