These high-tech quick release couplers and safety couplings are awesome for use with your Milton or tru-flate series couplers. The buttons on Prevost brand will never stick, and these will be an absolute perfect fit. These "smart couplings" are just that, producing a high flow and offered in a variety of sizes. Don't use cheap quick release couplings, use reliable ones that will increase efficiency and last you way longer. Prevost is the answer.