Thomas 1889 Gum Rubber Red Extruded Vacuum Tubing, 1-1/2" OD x 3/4" ID x 3/8" Wall Thick, 10' Length: Industrial Rubber Tubing: Amazon.com: Industrial & Scientific
Thomas 1885 Gum Rubber Red Extruded Vacuum Tubing, 5/8" OD x 1/4" ID x 3/16" Wall Thick, 10' Length: Industrial Rubber Tubing: Amazon.com: Tools & Home Improvement