Chapin's 1449 all-purpose industrial concrete sprayer is a proven choice for professionals. It has a Tri-Poxy tank and reinforced hose. 3.5-Gallon Tri-Poxy tank for protection from rust, corrosion, and denting. Wide funnel-mouth opening for easy filling and cleaning. Compatible for most professional concrete applications, suitable for homeowners too (check chemical manufacturers instructions). Brass nozzle and Shut-off with lock-on feature. Poly holster keeps wand and nozzles secure. Reinforced nylon braid and vinyl hose to withstand harsh chemicals. Chemical-resistant seals.