MASTERCOOL Silver R134A Oil Injector (82375) for Refrigerant Systems

MattMatt: Used it once then could not get the cap to open. Found the threads galled up after first use. The cap was simple hand tightened and was not cross threaded as can be seen, as the threads are perfectly fine after the first couple of threads.

Canada on Oct 06, 2023

ARISBET FERNANDEZ SALINAS: Buen material

United States on Aug 26, 2023

JPadilla95: Good product

United States on Aug 12, 2023

Willis McFadden: Good communications, Fast shipping, works well. Thank you.

United States on Sep 23, 2021

Marc Samson: A++A++A++

Canada on Apr 14, 2019

freeatbc@yahoo.cafreeatbc@yahoo.ca: for the price is not special and the connectors are 1/2 inch won't work on a regular refrigerant manifold other that that if is really what you need then is ok

Canada on Jan 21, 2019

Martin Lavoie: Exactly what I needed to add to my home ac repair business now I am able to add oil into system with out having to fill the filler hose with oil a lot faster I just had to get adapters to be able to hook up tommy guages

Canada on Aug 19, 2017

Waddie: Very good quality. The valve works and is also of high quality. The body is machined, the threads are clean. I had no trouble using this item on several auto AC systems this summer. I would recommend it to anyone who needs a way to get oil into their AC system. On one car when I didn't have my gauges with me I just used a can of 134a to push the oil into the system. Worked perfectly that way.

United States on Aug 13, 2017

Nigel: I used this to add oil back into my Ranger's AC system. I wasn't sure if I was doing it properly as per their instructions and I had to pull a vacuum a couple times to get all 2oz of oil into the system but other than that it worked fine. Very solid piece.

MAKE SURE YOU CLEAN THIS BEFORE USING!!! Can't stress that enough. I ran some brake clean through it and emptied the contents on a towel. I saw MANY metal shavings of aluminum and casting oil (black stuff). I am glad I read a review stating to clean it first or I would have just used it and gotten that crap into my system. I'm putting it in my review as well to hopefully help someone as well.

I had no issues getting the cap on or off. Threads were clean and all fittings/orings were sound.

United States on Jul 19, 2017

Uchman: This device comes with 1/2 inch male and female ends so you'd have to buy 1/4 inch male and female adapters for it to work with some manifold gauges. Had to return it.

Canada on Feb 20, 2016