Amazon.com: Eoiips PE Tubing 1/4"ID x 3/8"OD, Polyethylene Tubing White Tube Translucent hose Food Grade Tubing for Reverse Osmosis Systems & Drinking Water Filters (9.84Ft) : Industrial & Scientific
Amazon.com: Medical Grade Polyethylene Micro Tubing / 0.070" ID x 0.110" OD (+/- .005") = 1.78mm ID x 2.79mm OD (+/- .127mm) / (5) 100' Rolls : Industrial & Scientific