Versatile polypropylene tube fittings from Grainger can provide superb jointing qualities. Polypropylene has good impact strength, surface hardness, dimensional stability and excellent abrasion resistance. It can resist a wide variety of acids, alkalis and solvent solutions and withstand temperatures up to 200°F. Find polypropylene pipe nipples, reducing bushings, elbows, spool adapters and more in a wide range of sizes. Trust Grainger for high-quality polypropylene pipe fittings!