This tee compression brass is used to join 3 pipes together.
Union Tee Compression Brass
Brass Union Tee Compression Tube Fitting - Hose Factory
Brass/Pipe/Hose Plumbing Fitting Tee Compression Brass Fittings for Pex-Al-Pex Multilayer/Composite Pipes - China Auto Parts, Pipe Fitting
Proplus Part # 272421 - Proplus 3/8 In. Lead Free Brass Compression Tee - Brass Compression Tees - Home Depot Pro
Jones Stephens 1/2 Brass Compression Tee - Pipe Fittings
R 1/4'' Male x 6mm Brass Tee Compression Fitting 150 Bar DIN EN 1254-2
Brass Craft CT2-666XP Compression Tee Fitting, 3/8x3/8x1/4 – Toolbox Supply
LTWFITTING 5/8 in. O.D. Comp Brass Compression Tee Fitting (3-Pack) HF641003 - The Home Depot
TG Lynes - TGL 35x22mm Tee Compression Brass
Equal Tee Compression Brass Fittings for Pluming Multilayer Pex with Professional Service - China Hose Fitting, Union
Everbilt 1/4 in. OD Compression Brass Tee Fitting 800849 - The Home Depot
Lead Free Brass Compression Reducing Tees (On Branch) 1/4 x 1/8