Groz 44193 cmp-12 nylon chemical pump with stainless steel plunger rod & PTFE seals. Low fatigue operation. Comes with 2 inch bung nut to attach to 15- 55 gallon drums, with plastic set screw. Includes curved discharge spout assembly. Dispenses 400Ml (14 oz) per Stroke. Designed for use with lacquer thinners, Acetone, antifreeze, detergents and windshield fluids. Do not use with strong acids, bleach, gasoline, etc.