Ark-Plas Products” NSF-51/61 Certified Ethelplas tubing is extruded from 100-percent virgin linear low-density polyethylene resin. Ethelplas tubing is manufactured with non-toxic ingredients formulated specifically for the food and beverage industry. The polyethylene tubing is manufactured with 55 Durometer resin that is natural in color. Polyethylene tubing is economical, displays good resistance to chemicals, and is nonconductive. Ethelplas tubing is designed for applications such as commercial and household appliances, food and beverage dispensers, restaurant facilities, laboratory testing equipment, and general-purpose applications. The tubing is currently available in nine different sizes that range from 1/16″ ID to 5/8″ ID.