Horiznext npt 1/2 (means the inner diameter of the thread is 3/4 inch) cast female taper threaded pipe coupling, stainless steel 304 coupler for mush tun cooler and shower hose, 2 pcs - Amazon.com
U.S. Solid 304 Stainless Steel Lead Free 6000 psi High Pressure Hex Nipple, 1/2" x 3/8" NPT Male Thread Pipe Adapter(1 pc) - U.S. Solid