Posted by a reviewer on Amazon

I looked up a video on youtube that explained how to do the job

Posted by a reviewer on Amazon

I know it would have cost at least twice what i paid for this and the coolant to have had a shop refill it

Posted by a reviewer on Amazon

Make sure to look up online what coolant your vehicle uses before ordering that

Posted by a reviewer on Amazon

I wanted one with metal fittingsvalves

Posted by a reviewer on Amazon

Im going to mention one thing that i believe is quite important when you attach the can of freon to the gauge make sure that the pin that punctures the freon can is turned all the way counterclockwise otherwise youll experience the same unfortunate experience i did which was as i screwed the freon can onto the gauge adapter port it began to puncture the can before i was completely finished turning the can to mount it on the female portion of the adapter so it wound up puncturing the can before i completely turned it on to fit it tight so the word of advice is make sure you turn that pin counterclockwise all the way my recommendation also is for the vendor to ship that gauge with the pen unscrewed meaning counterclockwise so is that the pin is not ready to puncture the can when you mount it other than that its a normal basic operating system and it works fine use the error in this case the user being me so again make sure the pin that punctures your can of freon is turned all the way counterclockwise basically pulling the pin up so it will not puncture the can when you screw it into place screwing the can into the gauge mounting port

Posted by a reviewer on Amazon

Have to push hard to latch to the low port