Garden hose fittings connect garden hose to other garden hose, to pipe or to tubing. Hose end threads are 3/4" garden hose thread. Swivel connectors allow hose to twist without kinking. Hose barb ends for use with 97HC hose clamp or equivalent. All female connector ends should have a rubber washer (901GH-12) inserted prior to usage. The unvalved design permits maximum flow with minimum pressure drop.