Stainless Steel Fittings - High Pressure Threaded 1/2" Female x 3/8" Male Reducing Adapter 4500 PSI
Adapter Male 1/2" Female 3/8" (LP)
Aluminum Adapter, 1/2" Male NPT to 3/8" Female NPT | Air & Hydraulic Equipment,Inc.
1/2" NPT To 3/8" Flare Adapter
Keeney 1/2-in x 3/8-in Compression x Fip Adapter Fitting at Lowes.com
3/8" Copper X 3/8" NPT Copper Male Adapter
Kobalt 3/8-in to 1/2-in Socket Adapter in the Socket Adapters department at Lowes.com
Eaton - Industrial Pipe Adapter: 1/2-14 Female Thread, 3/8-18 Male Thread, MNPT x FNPSM - 09725292 - MSC Industrial Supply
3 Piece Socket Adapter Set Increasing 3/8" 1/2" 3/4" Female 1/4" 3/8" 1/2" Male - Walmart.com
Apeks Adaptor 1/2 to 3/8 Silver | Diveinn
79210 - Viega 79210 - 1/2" ProPress x 3/8" Male Bronze Adapter (Lead Free)
3/8" x 1/2" Sch 40 PVC Reducing Male Adapter - Mipt x Soc 436-053
3/8" Male NPT x 1/2" Female NPT Brass Adapter
1/2" Tube to 3/8" Tube Compression Adapter
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