Garden-hose-to-NPT adapters and connectors are typically used to connect garden hoses to pipes. They can also change the gender of a threaded end of a pipe, hose, or accessory. These fittings have a garden hose thread connection on one end and an NPT National Pipe Taper connection on the other end. The connections can be either male or female. This type of connection comes in either a rigid or swivel type.