Versatile unit changes from vacuum to pressure for evacuating or dispensing fluids. Ideal for draining tanks or reservoirs then pumping the used fluid back out for easy disposal. For superior mobility it utilizes a manual pump, so compressed air or electricity is not required. Accessories are included for draining engine oil or transmission fluid directly through the dipstick tubes. 2.3 gallon reservoir capacity. 24 X 12.4 X 9.3 inch.