Polyethylene with a 21" Wand. Description Designed for heavy-duty commercial cleaning, sanitizing, and applying harsh chemicals Premium, commercial grade non-corrosive shut-off with comfortable grip, lock-on feature, and easy-to-clean in-line filter Viton® seals throughout pump and shut-off for long-term resistance to chemicals Integrated stability base keeps the sprayer upright also providing convenient wand storage that protects the nozzle Convenient pressure release valve helps prevent chemicals from getting on you before opening the tank Includes: (1) Brass adjustable nozzle, (1) Poly adjustable nozzle, (2) Flat fan nozzle, (1) Foaming nozzle