Amazon.com: G Thread (BSP) to NPT (US Thread) Pipe Fitting Adapter with G Thread Bonded Washer Seal Included 1/2" FG x 1/2" MNPT 2 Pieces : Industrial & Scientific
Beduan 1.5" Tri Clamp to 1" NPT Male Stainless Steel Sanitary Fitting Home Brew Connector (Ferrule OD 50.5mm): Amazon.com: Industrial & Scientific
Amazon.com: Megairon 1-1/4" x 1-1/4" NPT Male Threaded Hex Nipple,Stainless Steel 304 Quick Coupler Pipe Fitting : Industrial & Scientific
Amazon.com: Joywayus 1/2" G Thread Female × 1/2" NPT Thread Male Brass Pipe Fitting Adapter : Industrial & Scientific
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