Husky 1/4 and 3/8 in. Drive Adapter Set (3-Piece) HADPTR3PC - The Home Depot
PROTO, 1/4 in_3/8 in_1/2 in Output Drive Size, Square, Socket Adapter Set - 19C375|JHA4S - Grainger
JIC 4 Male x 3/8" NPT Male Straight 2404-04-06 Adapter | JIC Male to NPT Male - Straight | JIC to NPT | Hydraulic Adapters & Fittings | Hydraulics | www.surpluscenter.com
LTWFITTING 3/8 in. O.D. Comp x 3/4 in. FIP Brass Compression Adapter Fitting (5-Pack) HF6661205 - The Home Depot
3/8" NPT Male x 1/4" NPT Male Straight 5404-06-04 Adapter | NPT Male to NPT Male - Hex Nipple | NPT to NPT | Hydraulic Adapters & Fittings | Hydraulics | www.surpluscenter.com
Kobalt 1/4-in x 3/8-in Adapter in the Air Compressor Fittings department at Lowes.com
Threading Adapter, NPT 3/8 Male to G 1/4 Female, Stainless Steel
TEKTON 3/4-in to 1/4-in; 3/8-in; 1/2-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
BrassCraft 3/4-in x 3/8-in Threaded Female Adapter Fitting in the Brass Fittings department at Lowes.com
Aluminum Adapter, 3/4" Male to 1/2" Female NPT | Air & Hydraulic Equipment,Inc.
Female Pipe Reducer 3/8" to 1/4" Npt Adapter Coupler Brass Fitting Water Oil Gas | eBay
U.S. Solid 2pcs Brass Pipe Fitting Adapter, Male Pipe x Female Pipe, 1/2" x 1/2", 1/2" x 3/4", 1/4"x 1/4", 1/4" x 3/8", 1/8" x 1/4", 1/8" x 1/8", 3/8" x 3/8" -
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
PlumbPro 3/8 in. x 3/4 in. Brass Flare x Male Adapter 02216 - The Home Depot