The 30mm JRC Carburetor is an excellent choice

3' of red translucent fuel line

twins and triples

This kit will fit Triumph 500 models 1967 and up

Note that this switch is fully round and does not have a flat D-shaped section

Double Banjo 150 degree Fitting for 626 928 930 932 Concentric Carbs Makes_Triumph The 30mm JRC Carburetor isDouble banjo fitting for Amal carbs. This fitting has dual fittings 150 degrees apart. Great for dual petcock gas tanks, you can have a fuel line run to each carb and a cross over fuel line between the carbs to balance the fuel level. Or run dual petcocks to your single carburetor. Sold individually.