Medical Grade Polyethylene Micro Tubing / 0.015" ID x 0.043" OD (+/- .003") = .38mm ID x 1.09mm OD (+/- .076mm) / (10' Coil): Amazon.com: Industrial & Scientific
BD Intramedic PE Tubing ID: 0.023 in.; OD: 0.038 in.; 100 ft. Long:Pumps | Fisher Scientific