Amazon.com: Horiznext npt 1/2 stainless steel hex pipe fitting, 3/4 inch male thread O.D. water hose connector, for valve shower faucet tube air gas line plumbing coupler extension.(4 pcs) : Industrial & Scientific
Horiznext male thread reducer, stainless steel 304 hex pipe fitting, npt 1" to NPT 3/4" adapter, 1-1/4 to 1 inch o.d. water connector (Pack of 2) - Amazon.com