3/4" Insert x 1/2" MPT Nylon Adapter Adapters like these are mainly used to connect two hoses. This adapter has an NPT male end on one side, and a barbed end on the other side. The barbed end is made to fit tight through the end of a hose and not easily pull out. Then, a clamp is installed on the outside of the hose to make the connection stronger and sealed tighter. Features Used in fluid plumbing applications requiring straight connection to a female pipe tapered thread fitting and a hose GREENLEAF USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.