Amazon.com: 1PC Brass Adapter Fitting Reducing Hexagon Bush Bushing Male to Female Connector Fuel Water Gas Oil 1/8" 1/4" 3/8" 1/2" 3/4" 1" (Color : F 02 To M 04) : Automotive
Made4Trade Brass Hexagonal Bush 1" x 3/4" | Toolstation
Brass Reducing Hex Bush, Size: 1/2 inch
Brass Flex Metal Conduit Fittings Long Short Type Male Hexagon Bush BS Standard