1-1/4" White PEX-a Expansion Tubing, (100 ft Coil) - PEXhouse.com
Apollo 3/4 in. x 10 ft. Blue PEX-B Pipe APPB3410 - The Home Depot
Amazon.com: Ice Maker Installation Kit 25 Feet of PEX Tubing for Appliance Water Lines with Stop Tee, 1/4" Compression Fittings, for Potable Drinking Water : Appliances