01M Gilmour Nylon Reusable Male Hose Coupling Leakproof, rustproof, unbreakable, reusable, and easy to use. Gilmour menders and couplings are the strongest available to replace female and male hose couplings and mend any size hose from 5/8 to 3/4.. Premium construction for maximum strength and durability. . For rubber or plastic hose.. Non-corroding high-grade stainless steel screws will not strip when tightened.. Unique manufacturing process with highest level of quality control.