If water was in your pump when the weather turned and it froze you may have a cracked casing. This kit replaces the cast iron casing, seal, and O-rings on the AMT 1SP07C-1P chemical pump.
1641-161-91 EPDM/EPR Seal Assembly for AMT 1SP07C-1P 1A11-305-90 Flapper & O-ring EPDM Kit for 1SP07-1P 1A11-001-95 Casing Kit for 1SP07-1P
