1/2 NPT Female Solid Brass Three Piece Pipe Union Fitting Adapter – compressor-source

1/2 to 3/8 Reducer, Vfauosit 3/8 to 1/2 RV Faucet Adapter Brass Compression Fitting Faucet Supply Line Adapter for Plumbing Water Hose 2 Pieces

3/8 NPTF Female Union Tee Solid Brass Pipe Fitting T Joint Hose Conne – compressor-source

Husky 1/4 in. Female x 1/4 in. Female x 1/4 in. Male Brass Tee Fitting HDA30700AV - The Home Depot

3/4 X 3/4 Inch Female NPT In Line Brass Compressed Air Check Valve CIL3434U USA £23.78 - PicClick UK

Proline Series 3/4-in x 1/2-in Threaded Female Adapter Fitting in the Brass Fittings department at

Air Compressor Tank Port Fittings NPT 1/4 3/8 1/2'' Solid Brass Male Thread Water Drain Safety Valve Replacement Part

1/2 MNPT x 1/4 FNPT Solid Brass Bushings Reducer Fitting Adapter 281 – compressor-source

Pipe Fittings & Accessories – tagged Unions – compressor-source

SUNGATOR Brass Pipe Fitting,NPT Reducer Adapter,1/4 Inch Male Pipe x 1/2 Inch Female Pipe,1/4'' Male to 1/2'' Female Hex Nipple Reducer Pipe Fitting, NPT Reducer for Water Line, Refrigeration (2-Pack)

1/2 x 1/2 Compression Male NPTF Adapter Solid Brass Compression Fitt – compressor-source

HOME-FLEX 1/2 in. CSST x 1/2 in. FIPT Brass Female Adapter 11-435-005 - The Home Depot

HANSUM 1/4 Male Flare Gas Adapter Metals Brass Fittings for Copper Tubing Pipe Half Union Connector Coupling AC Tube Coupler Extension Joint Connectors Mini Split (1/4,2packs Male Flare+4packs Nut)

GASHER 10PCS Brass Compression Tube Pipe Fitting Connector, 3/8 Tube OD x 3/8 Tube OD Connector : Industrial & Scientific

Adapter Nipple 3/4 Male x 1 “ Female Pipe Fitting NPT - Brass Adapter 3/4 inch x 1inch Female Pack of 1