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
SS 304 Stainless Steel Water Pipe Fitting 1/8" 1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" Male Female Threaded Straight Pipe Fitting - AliExpress
Dip Tube with Compression Fitting for Keg or Kettle 1/2" - Stainless S | NY Brew Supply
Amazon.com: Horiznext npt 1/2 female thread stainless steel tee pipe fitting, three way 3/4 inch I.D. connector, metal cast t shaped adapter for water air furniture tank tube industrial (1 pc) :
Matco-Norca 1 in. X 2-1/2 in. Schedule 40 Welded Stainless Steel Nipple Fitting SSN30405212 - The Home Depot
Amazon.com: 304 Metal Stainless Steel Pipe Fitting, Coupling, Npt 1/2 x Npt 1/2 Inch Female Pipe 1 Piece : Industrial & Scientific