20 GALLON CAPACITY- This oil drain tank has a capacity of 20 gallons and can collect waste oil from 8-10 cars. It features air operated working principle, and this waste oil drain can empty the waste oil from the fuel tank in a short time. Great for draining, transferring, and evacuating oils and fluids. ADJUSTABLE HEIGHT - The oil drain has a wide range of adjustable heights, 38' to 65' for draining fluids from vehicles on lifts. It can correctly complete the work of collecting car waste oil. Suitable for factory, auto repair shop, and home use. STABLE MOBILITY- Our oil drain pan is constructed with two 4.5' rigid wheels and two 2.76' swivel casters for maximum mobility and maneuverability. It would be more flexible in the working space and can be moved from place to place easily. LARGE DIAMETER FUNNEL- The oil drain pan is designed with a funnel shape, which diameter is 15'. The big pan is perfect for transferring oil and effectively prevents waste oil from spilling