Amazon.com: Horiznext NPT 1" male thread to 1 inch O.D. barb stainless steel pipe fitting, for connecting 1 inch I.D. air hose tubing, pack of 2 pcs : Industrial & Scientific
Street Elbow 90 Degree,1 Inch Male x Female NPT Thread SUS304: Amazon.com: Tools & Home Improvement
Amazon.com: Megairon 1" x 1" NPT Male Threaded Hex Nipple,Stainless Steel 304 Quick Coupler Pipe Fitting : Industrial & Scientific
Anvil 8700162608, Malleable Iron Pipe Fitting, Locknut, 1" NPT Female, Galvanized Finish: Industrial Pipe Fittings: Amazon.com: Tools & Home Improvement