Gilmour 1/2" Hose Female Coupling, Polymer. This coupling is designed to repair or replace a damaged or worn-out coupling on a 1/2" hose. It features a patented impact-resistant clamp design, non-corroding high-grade stainless steel screws, and is manufactured using the highest level of quality control. This coupling is leakproof and reusable, and can be used with rubber or plastic hoses. Simply cut off the old coupling and attach the new one.