Product review (1 stars): READ as to why DO NOT BUY
Worthless and costly . Returning it without trying it because same mfg offers it cheaper as a direct inject tube for less money. This might be useful if you have R22 and even then more costly and after buying the hose your out $80. This is simply outdated system and they are trying to sell you left over stock. DO NOT BUY. Returning it unused or tried. Stupid as hell and false advertised . If your system is 410a you would need to vaccume system to install as to get under required 50 lbs on a 410a you system would be so low on freon it would not even run. This is a scam to unload the old stuff. Buy the direct inject and easy to install on any running system. Yes slammed you and you know why. And if direct inject fails in less than 30 days you get it back too. Almost got me but when read instructions seen this as worthless. As prime member you get it back and the hose back and you pay the the return shipping. Amazon needs to start looking at what it sells as bad products hurt them.