Amazon.com: Global Ma 1/2" Male x 3/8" Female Thread Reducer Bushing Pipe Fitting, Adapter, Stainless steel SS 304 NPT : Industrial & Scientific
PHA12F: 3/8" MALE FLARE x 1/2" FEMALE PIPE – PROPANE HOSE ADAPTER END NG/LP 720189233944 | eBay
Brass Pipe Fittings, Water Hose Adapter, G 1/2 Female to G 3/8 Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet, Pipe Connector with Rubber Washer,(2 Pack) - - Amazon.com
Kobalt 1/4-in x 3/8-in Adapter in the Air Compressor Fittings department at Lowes.com
4 PCS 3/8 Inch Flexible Flex Gas Line Hose Brass Connector Kit, 3/8" Male Flare x 1/2" Male NPT & 3/8" Male Flare x 1/2" Female NPT, Fit for LPG, NG Propane
Vfauosit Brass Pipe Fitting, Water Hose Adapter, 3/8 inch Male x 1/2 inch Female water pipe adapter 3/8 to 1/2 pipe adapter Reducer Adapter 2 Pieces - - Amazon.com
3/8" x 1/2" Female Straight Thread O-ring to Male Pipe Adapter, Steel Hose Adapters - Hi-Line Inc.