John Guest 3/8-in x 500-ft Polyethylene Tubing Coil in Red in the Polyethylene Pipe, Fittings & Accessories department at Lowes.com
Brass Hose Barb Union Tee For Polyethylene Tubing - Single Barb Style
JUSTRITE 2 Gallon, Polyethylene Quick-Disconnect Disposal Safety Can, Stainless Steel Fittings for 3/8" Tubing, White - TF12752 - EnSafeCo.com
Amazon.com: PureSec 3/8 Water Line Fittings 3/8 Push to Connect Fittings for 3/8 OD Tubing(3/8 Ball Valve+3/8 T fitting+Y+L+I, Pack of 10) : Industrial & Scientific
Threaded - Insert Tee Fitting - 3/4" MPT x 3/8" BARB x 3/8" BARB