SteelTek 1-1/4-in Structural Galvanized Single Socket Tee in the Structural Pipe & Fittings department at Lowes.com
HULK Metal , Structural Pipe Fitting Fixing
Amazon.com: Structural Pipe Fitting, DIY Outdoor, Use Imagination -1-1/2"Tee-E Short, 3T-8, Aluminum Magnesium, Note: ID of fitting is 1.925, to take nominal 1-1/2" steel pipe which all have an OD of 1.9". :
Adjustable Slip-On Pipe Fittings, Cincinnati, Ohio, Denier James Co.
Two Socket Cross 90 Degree Aluminum Structural Pipe Fittings Manufacturer - HULK Metal
4 Way Connector | Modular Pipe Connector | Maker Pipe
45 Degree Connector | Maker Pipe
Structural Pipe Fittings | U.S. Geological Survey
Quik Klamp Pipe Fittings - FarmTek
Stainless Steel Tube Fittings
Structural Pipe Fittings - Tubeclamps fittings 148-B34 with short tee
SteelTek 1-1/4-in 90-Degree Structural Galvanized Side Outlet Elbow in the Structural Pipe & Fittings department at Lowes.com
GRAINGER APPROVED Structural Pipe Fitting: Base Flange, 3/4 in For Pipe | Fittings for Slide-On Railings & Framing Systems | The BuildClub - Buildclub
Adj Tee, 2 in For Pipe Size, Structural Pipe Fitting - 54WJ81|17-9 - Grainger