Structural Pipe Fittings - Tubeclamps fittings 148-B34 with short tee
Tee, 1 1/2 in For Pipe Size, Structural Pipe Fitting - 4NXV5|4NXV5 - Grainger
Short Tee Aluminum Structural Pipe Fittings Manufacturer - HULK Metal
eoere 8 Sets 4 Way Structural Pipe Connector, Metal Clamp Fittings, Fit for 1"(O.D. 25.4 mm) Stainless Steel Pipe (Doesn't fit US 1" Electrical-Metallic Tubing) - Amazon.com
Zoro Select Structural Pipe Fitting, Side Outlet Tee, Cast Iron, 2 in Pipe Size, 50000 lb Tensile Strength (30LX01) | Zoro