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

LTWFITTING 1/4 in. O.D. Comp x 1/4 in. MIP Brass Compression Adapter Fitting (5-Pack) HF684405 - The Home Depot

Proline Series 3/8-in x 3/8-in Threaded Tee Fitting in the Brass Fittings department at

Plumb Pak 3/4-in x 1/2-in Threaded Male Hose x Mip Adapter Fitting

Everbilt 3/4 in. Galvanized Steel FIP x Sweat Dielectric Union FSU HDLFDU-34 - The Home Depot

Watts 3/8-in x 1/2-in Threaded Flare x Mip Adapter Union Fitting

Proline Series 3/4-in x 3/4-in Threaded Wye Fitting in the Brass

Proline Series 3/4-in x 3/4-in Threaded Female Adapter Fitting in the Brass Fittings department at, hose connector

Watts 3/4 in. Brass FIP x FIP Full Port Threaded Ball Valve 3/4 LFFBV-3C - The Home Depot

Proline Series 3/8-in x 3/8-in Compression Adapter Fitting in Gold

Proline Series 3/4-in x 3/4-in Threaded Female Adapter Fitting in

LTWFITTING 3/4 in. MIP Brass Pipe Hex Head Plug Fitting (5-Pack) HF1031205 - The Home Depot

Proline Series 3/8-in X 3/8-in Threaded Flare X Mip Adapter, 45% OFF

Everbilt 1/2 in. x 3/8 in. Female OD Compression Brass Reducing

Proline Series 3/8-in x 1/2-in Threaded Union Fitting in the Brass

Legines NPT Union 1/4 Female x 1/4 Female Brass Pipe Fitting Straight Connector 1200psi (Pack of 2)

Uxcell Brass Tube Coupler 5/16 Flare Male Connector Pipe Coupling Fitting Union Gas Adapter for Air Conditioner 4 Pack

Compression Air Brake Fitting Union, Brass, 3/4

3/4 in. NPT Threaded - Union - 150# Cast 316 Stainless Steel Pipe Fitting

The difference among coupling, union and nipple--CIVMATS.