Product review (5 stars): This did work perfectly fine and did its job
This did work perfectly fine and did its job, but I shouldn't have been messing around with these things as I didn't know enough about what I was doing, so although this item works perfect I would caution other homeowners not to just buy this and use it to squirt a random amount of freon into an old refrigeration appliance in my case I made it worse because I used the wrong type of refrigerant. If you know what you are doing then this is going to work great for you.