Pentair Whisperflo Pump O-Ring 071445 O-Ring for the following Pumps: WhisperFlo Pumps Manufactured Before June 1994 Note: Pumps manufactured before November 1998 require a volute replacement kit (357149) when replacing items no. 9-gasket, no. 10-volute, or no.18-seal plate. This kit will update the pump to the new configuration using the “Cam and Ramp” lid design. Pentair 071445
