Chapin's 1949 open head form oil sprayer is the best-selling unit and is unmatched for quality. It's compatible for most professional concrete applications and extreme chemicals. It has a 3.5-gallon Tri-Poxy tank for triple protection and a wide mouth opening for easy cleaning and filling. It features a solid brass pump barrel, nozzle and shut-off, a 24-inch extension, and a 48-inch hose. The unique Tri-Lock seal ensures the pump cap is on tight.