BrassCraft 3/4-in x 1/4-in Threaded Female Adapter Fitting in the Brass Fittings department at Lowes.com
PVC 3/4/5/6-Way Equal Water Supply Pipe Fittings Adapter Connector ID 20mm-50mm | eBay
3/4" x 1" Sch 80 PVC Reducing Male Adapter - MPT x Socket 836-102
1/2" 3/4" Bsp Female Male Thread Tee Type Reducing Stainless Steel Elbow Butt Joint Adapter Adapter Coupler Plumbing Fittings - Pipe Fittings - AliExpress
3/4 in x 3/4 in Fitting Size, Male x Female, Garden Hose Adapter - 1P723|1P723 - Grainger
Apollo 3/4 in. Brass PEX-B Barb x 3/4 in. Female Pipe Thread Adapter APXFA3434 - The Home Depot
Amazon.com: GESHATEN 3/4” G Thread (BSP) Female to 3/4” NPT Male Connector, Brass BSP to NPT Adapter 3/4 Inch, Industrial Metal Brass G Thread to Pipe Fittings Connect (2 Pack) : Industrial & Scientific
Largest selection of common and unique PVC pipe fittings