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
Close Nipple - 304 Stainless Steel - Schedule 80 - Welded - Fully Threaded - 1" BSPT - 1-1/2" Long
STZ 1/4 in. x 6 in. Galvanized Steel Pipe Nipple 309 14X6 - The Home Depot