This ½ inch Barb x ¾ inch Npt Male Brass Hose Connector Adapter is a perfect fit for you hose to female pipe connection. It connects 1/2" hose (1/2-inch inner diameter) to 3/4-inch Npt female pipe. The barbed end creates a tight seal on flexible and semi-rigid hose when used with a hose clamp (not included). The Long threaded male end prevents water leak. Its quality brass construction makes highly resistant to corrosion. You can install it on gas and water pipelines. Operating temperature range from -32 to +140 degrees and pressure rating is between 155 and 240 PSI. Note: For better sealing use Teflon tape. Use qualified professional services to install in pipelines.