1963-1967 Hardtop Weatherstrip Kits C2 Owners, you have a choice when it comes to your Weatherstrip. CA now provides 2 different Weatherstrip options for your Corvette. 1. IMPORT EPDM Rubber: Provides significant dollar value versus USA., Import EPDM boasts longer life span over original latex WS., Includes 5-Year Replacement Warranty! OR 2. USA EPDM Rubber: USA EPDM boasts longer life span over original latex weatherstrip., Dipped finish for superior appearance out of the package., Made in America!. In the diagrams: A. #1325 - Inner Header Weatherstrip (USA) A. #1729 - Outer Header Weatherstrip (USA) B. #43160 - Hardtop Horizontals Weatherstrip (USA) C. #1326 - Rear Weatherstrip (USA) D. #1327 - Rear Window Weatherstrip (USA) E. #43161 - Hardtop Verticals Weatherstrip (USA) F. #43162 - Vertical Lower Ext. Weatherstrip (USA).