Chapin 1480 Industrial 3.5-Gallon Funnel Top General Duty Professional Sprayer For Multi-purpose Use (1 Sprayer/Package) 3.5-Gallon Tri-Poxy tank for durability and a 4-inch wide mouth opening for easy filling and cleaning Compatible for most professional and residential concrete sealing applications and other landscape/lawn applications Brass wand, nozzle and shut off with lock-on feature for durability and easy cleaning Nitrile seals for flexibility with common solvents, fertilizers, weed killers and pesticides (check chemical manufacturers instructions) With proper cleaning, this sprayer is built to last