Amazon.com: 2pcs PVC Pipe Y-Type Connector PVC 3 Way Joints Water Pipe Tee Connectors Aquarium Fish Tank Water Supply Pipe Fittings - (Color: White, Size: I.D 40mm) : Pet Supplies
90 Degree Schedule 40 PVC SPIG x SLIP Street Elbow Fitting (1 1/4" Dia. (1 Pack)) - 409-012 - Amazon.com
CHARLOTTE PIPE 1 1/2 DWV Double WYE DWV (Drain, Waste and Vent) (1 Unit Piece) - Pipe Fittings - Amazon.com
FORMUFIT 1" 3-Way PVC Elbow Furniture Grade Fitting in Black, 1.315" Actual ID, (Pack of 4), Made in USA, UV-Resistant, Impact-Proof, Easily Build 3-Point Corners with PVC Pipe - F0013WE-BK-4: Amazon.com: Industrial