Mastercool90375 Oil Injector

I used this item right out of the package. Fit my gauges perfectly . Worked perfectly. Didn't need any adapters to fit my manifold gauges. There's another oil injector made by Mastercool Part #82375 That has different fittings for your manifold gauges. You need one or the other. Part # Master cool 90375 has 1/4 inch fittings.

couldn't get the top unscrewed. The threads wore messed up right out of the box. I threw away the packaging, now I'm stuck.

This item seems to be of high quality. Just make sure you have your gauge hoses oriented correctly. I had mine backwards and the oil ended up spraying all over the place.

Seems to be made of solid quality and construction, the only flaw i saw with the descripition is that it didnt state that it was for a R12 ac system. This injector is for R12 not R134a

good