Plews 30-740 UltraView Suction Gun with Red Tube Ends 12 inch clear hose, 9-3/4 inch stroke and 16 ounce capacity Visually see exactly what is inside and determine amount of dirt or impurities in system Built with a hi-tech polycarbonate shatter-proof see-thru barrel Used for draining gear cases transmissions and differentials For use with any non-corrosive liquid