Lubrication Specialists LLC
Look for them on the web.
Just ordered one a week or so ago, great service.
Also, have 3 others currently installed, used them on two other previous cars. Do not worry about these things leaking or hitting something they are built like a tank. Actually did hti one with a concrete median once, shaved some brass off of the nipple but did not break and still works fine.
there is one at O'reilly's that is around 10 bucks. It can be found on the shelves by the drain plug washers/replacement drain plugs, etc. Not sure if I would trust it, though...Maybe someone else has used it?