JIFETOR 4 Way AC Manifold Gauge Set, HVAC Diagnostic Refrigerant Charging Tool for Auto Household R404A R134A R410A, with 5FT Hose, Adjustable Quick Coupler, Adjustable Can Tap, Tank Adapters

Mala calidad. Los acoples para 134 traen un oring que no sirve y pierden.El manómetro de alta me hizo perder todo un día haciendo un diagnóstico porque la aguja se quedó trancada en 300 psi.

I bought this back in November 2020. I didn’t really had to use it until December 30, 2020( today), when working on a 70 T industrial a/c unit!I had to add a few pounds of R410A on circuit #2; and, I was looking at the high side gauge P/T chart( to compare with my liquid line temperature and see what the sub cooling was) ....and, I just realized the gauges P/T charts is in reference to Celsius NOT Fahrenheit !🤔I got the job done by having to convert Celsius to Fahrenheit, but I would not have bought this gauge, if I had noticed this very important detail when purchasing! After all, I don’t use Celsius for anything, in my current work.To be honest, the fault is mine for being too impulsive, and buying the gauges without reading the specs properly: I learned a lesson here!So, aside for being a little more of a hassle to use it (I am not sure how long these plastic gaskets are going to last!), overall is a good value for the money!P.S:. on the flip side my coworkers don’t ask to borrow it because they don’t want to go to the hassle of converting C to F!😊👍)

Excellent guality and all lot of extra pieces

cheap knobs broke almost instantly. Made replacement handles and still working fine

I am very impressed with the quality of the gauges they’re right up there with Robin Air and Yellow Jacket. The charging adapters make a good snug fit. Also the case is a great bonus. I would highly recommend this tool.

El medidor de baja presión llego dañado. La aguja estaba trancada en el mínimo permitido sin remedio.Lo retorne sin problemas con las indicaciones de Amazon

A lot better than some of the competition...

My vacuum pump draws down to 9 microns with a CPS VG200 gauge attached directly to the port (no hoses). The best it'll do with these hoses and the low-pressure gauge in line is 45 microns. Meaning that something leaks. And even at 45 microns the vacuum feature of the low-pressure gauge only reads a bit over 20 inches of mercury (about 70% vacuum) when in fact 45 microns is about 99.99% vacuum. I assume the pressure operation will be more accurate (the long side of the rotation), although I haven't tested that yet (I'll update this review if it fails). But even with the leaks and inaccuracy it's still usable for evacuation (which only requires 350 microns for a minisplit and only 500 for a vehicle AC system) and recharging. You get what you pay for, but if you're not doing AC service professionally this set will do the job.