Presto Pressure Cooker Model “603 (Canada)”. Parts List for Presto “603 (Canada)” Pressure Cooker. Genuine Presto® OEM factory replacement service parts. Service parts for the Presto® model “603 (Canada)” may be ordered on-line using the links below. Presto 85658 Pressure Cooker Vent Pipe 85658$9.49 9914 Pressure Indicator 9914$11.99 Presto 9901 Pressure Cooker Sealing Ring 09901$7.89 These are Genuine Presto® Pressure Cooker Parts. Not aftermarket copies. *Guaranteed to fit! Cooking and Canning Company recommends using only Genuine Presto® parts not (PR) aftermarket copies Presto Sealing Ring Installation Older Models *Orders placed before 2:00 PM ET will ship same day. Orders placed after 2:00 PM will ship next business day! *”Guaranteed to fit” Presto pressure cooker parts must be installed correctly and pressure cooker must not be modified from OEM. Presto® original equipment manufacturer * IN STOCK ITEMS "Presto" is a registered trademark of National Presto Industries, Inc.