Chapin 3.5 Gallon Pump Model 1999

Has pressure fitting for air supply. No need to keep pumping to create pressure. It's the perfect addition to your concrete equipment.
3.5-gallon Tri-Poxy tank for protection against rust, corrosion, and denting
Pressure fitting for air supply
4-inch wide mouth opening for easy filling and cleaning
48-inch reinforced hose with threaded fittings
Brass wand, female brass fan-tip nozzle and Shut-off with lock-on feature.
Poly holster keeps wand and nozzle secure
Unique Tri-Lock seal feature that locks the cap tight and pressure relief valve