I got the MV7201 Fluid Evacuator about two years ago and has worked like a charm with no issues. Works well for putting too much oil in your system too I've sucked out power steering fluid and did a brake flush too. The plastic walls of the cylinder have ribs to add stiffness while you extract the hot/warm oil from your car...very important. I bought an extractor from Griots Garage (they don't sell it any more) 6 years ago and it was not big enough to suck out 7ish quarts of oil and would cave in from the suction and heat of the oil. Both my brother and I have had no issues with the mitivac.