Polyethylene tubing — linear low-density and co-extruded with EVA (ethylene vinyl acetate) versions — is made from FDA-approved non-toxic ingredients. Low-density version is lightweight and chemically inert and comes in 12 sizes from 0.170- to 1 1/2-in. ID. It resists stress cracking and stays flexible at temperatures below 0° F. Co-extruded version also conforms to USP Class VI standards and provides flexibility because of bonded EVA outer layer. It operates in temperatures below 100° F and comes in nine sizes from ⅛- to 1-in. ID.

NewAge Industries Inc., (800) 506-3924, www.newageindustries.com