Oil Sampling Pump - Made in USA - with Vacuum Release Valve - Compatible with 5/16-inch Hose, 1/4-inch Hose (Most commonly Used) and 3/16-inch Hose

I needed a good quality pump for taking fluid samples from the generators I work on. Works extremely well and the vacuum release button is a definite plus.

Works good, thank you

Solid construction and good price.

Great for oil sampling! I also used it for flushing my power steering system out with fresh fluid. Hooked it up to the return line and pulled fresh fluid from the reservoir. Worked great !!

Good packaging, quality product, as described will accept multiple size hose. Works very well. Makes taking samples extremely easy and clean. So if you are tracking the wear on your engine or monitor the transmission or coolant this makes it so much easier to obtain samples. The release button allows you to exactly control the sample size and stop the flow when you want. Very sturdy build quality. Think it will last for many years.

Good seal. Works great

Where has this been all my life? So much easier than catching a sample during an oil change or worse asking for a sample when getting a fluid change and they forget it. It’s so simple to use and you don’t even have to clean it. Oil flow starts easily with a pump or two. 1/4” line fits perfectly in it and then just watch your cup fill up and press the vacuum release button to stop the flow. I also got the cups from Lubeflex. Made in america they say and I like that. It does have some knurling on the handle other look alikes don’t have. I love it. Makes oil sampling so easy and fast.

This is the first sampling pump I've purchased. I put it to use almost immediately, sampling oil on a Ram 3500 with the 6.7L Cummins engine. The 1/4 inch tube attached to the pump perfectly with no issues. I had to change to a 3/16 flexible fuel line tubing because of the Cummins dip stick tube. The 3/16 line worked, but didn't tighten down quite as good. I thought the threads were going to strip on the yellow plastic head because of how much you had to tighten it so the O-ring would fit snug on the 3/16" tubing. At one point, I noticed the thumb screw looked like it was setting at an angle - like it was cross threading or trying to jump threads. I loosened it then tightened it back down a little less tight than before. The vacuum worked excellent however, and I was able to get a sample after some other difficulty with the 3/16 tubing that was not related to this pump.

Works good easy to use it's a good quality unit.

Because oil is thick pull handle slowly or it will break. Works well if you do multiple pulls

works as decribed