1CAMO 4-Way Tee PVC Fittings, SCH 40, White - 1 Inch PVC Elbow Fittings PVC Pipe Connectors - Build Heavy Duty Furniture with 1 Inch PVC Pipe (4 Pack) - Amazon.com
4-Way Tee & 5-Way Tee, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings UPDATE 2015-07-03 by Tony Youngblood | Download free STL model | Printables.com
PVC Pipeworks 3/4-in Schedule 40 PVC Tee in Black (8-Pack) in the Structural Pipe & Fittings department at Lowes.com