This is a set of two brand new gas tank main & reserve petcock tap to gas tank Dowty sealing washer. Inside diameter 1/2 inch.
Fits: Most Triumph 250cc, 500cc, 650cc, 750cc single and twins. Norton Commando, BSA, AJS and Matchless.
Part # 70-7351, 82-8198, 06-5329, 00-0183, 70-6961