With a 14 liter capacity, the Pela Pro 14 is the largest on the market. It comes with a new improved, patent pending mechanism. For durability, the pump unit is also housed inside the container. Just pump 20 to 25 times in a row to create a powerful vacuum and then watch the oil drain into the see-through, calibrated container. An internal float switch shuts off extraction automatically when full. Ideal in the workshop for servicing large engines or several smaller ones before emptying. Ideal for boats with large diesels and those with twin engines.