This Clemco CQA-1/2 aluminum quick coupling is made for hoses with an inner diameter (ID) of 1/2" and an outer diameter (OD) of 1 3/16". They come with a gasket, screws, and a lock pin and are designed specifically for blast hose. This coupling is available in aluminum.
Aluminum material is pliant and strong and weighs less than brass. Aluminum couplers provide the strength and durability you expect from Clemco without adding too much extra weight to the hose assembly. These aluminum couplings are injection molded for precise dimensions, ensuring a positive fit.
See the bottom of the product manuals for diagrams of additional compatible products.