Go with the one from the tool warehouse. I have the liquivac and while it does perform the function, it is difficult/awkward to pump (reqires at least 50 strokes to empty my TE), the tank deforms when the vacuum builds, it is slow to work and the tubing collapses when used on anything other than a cold engine (i.e. on every oil change).

I will be purchasing one that is pumped vertically when the Liquivac gives up the ghost.

Ed