PVC Pipe Fitting,4 Way Cross,Schedule 80 1/2-inch Socket Tee Corner Fittings White 2pcs - Walmart.com
1" 4-Way PVC Furniture Fitting - Side Outlet Tee For Use with 1" PVC Pipe
Amazon.com: Newsmarts 3/4" Side Outlet Tee 4-Way Fitting, Malleable Cast Iron Pipe Tee, Pack of 3 : Industrial & Scientific
1" 4 Way Tee $2.75 each
PVC FORTS 1/2 inch 4 Way Tee PVC Fitting Elbow Connector, White (1) - Amazon.com
PVC Pipeworks 1/2-in Schedule 40 PVC Tee in White (10-Pack) in the PVC Pipe & Fittings department at Lowes.com
Amazon.com: Rainbow Dream 4-Way 1 Inch PVC Elbow Corner Tee Fittings - Build Heavy Duty Furniture Grade for 1 inch PVC Pipe - 8 Pack, White : Industrial & Scientific