I bought this manifold kit to replace an old Robyn air valve that broke during a move. I am very satisfied with the functioning of this collector. I have to give them a guess of the doubt that they are new. I had no issues with the quick connects which sealed everything very quickly and easily and the quick connects fit the line ports like a champ with no leaking out of nowhere. Yes, the case could be a bit better where the hoses go, but that's not a problem and doesn't bother me. Love the aluminum handles, it looks and feels pretty sturdy and well made. Automotive R134A air conditioners will now hold 30 pounds of vacuum at the manifold with closed quick couplers and 28-29 pounds on a vehicle with open quick couplers and the system will sink. I vacuumed the systems for 45 minutes each and left them for 1 hour. with the system closed, check m for leaks, then charge the system and everything was fine and done! Yes I have to recommend this manifold set to anyone looking to buy a cheap manifold set. He's worth his money. Hope this review helps you
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