This is the Sullivan Field Pump for Smoke Fuel. FEATURES: Reversible Gear Pump design. Works from 6V to 12V Ultrasonically welded pump head. Direct drive that prevents slipping. Fill-Off-Empty 3 position switch and pre-installed alligator clips INCLUDES: One 12V electric field pump for smoke fuel REQUIRES: Medium Fuel Tubing (GPMQ4131) SPECS: Length: 3.75" (95mm) Width: 1" (25mm) Height: 1" (25mm) Pump capacity 33 ounces per minute at 12V COMMENTS: This is for Smoke Fuel only. do not use gasoline or glow fuel.