Amazon.com: KOOTANS 3/8 NPT x 1/4 NPT Male Solid Brass Hex Nipples, Heavy Brass Pipe Adapter Fittings Reducing Nipples Connectors 4Pieces : Industrial & Scientific
3/8" NPT Female to 1/4" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female: Pipe Fittings: Amazon.com: Industrial & Scientific
LTWFITTING 3/8 in. FIP x 1/4 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF1026405 - The Home Depot
3/8"-1/4" átalakító - 1st-market
Amazon.com : Foto&Tech Metal 1/4 inch to 3/8 inch Tripod Thread Adapter, Easy Mount Convert Screw Adapter for Tripod Monopod Ballhead, Reducer Bushing for Camera Video Equipment DSLR SLR Mic Boom Stand (
CRAFTSMAN 1/4-in to 3/8-in Standard Socket Adapter in the Socket Adapters department at Lowes.com