ZeroR® Permafrost for R1234YF AC Systems | Performance Booster | 5 Cans + 24" HD Can Tap Gauge

I thought our 2019 Subaru Forrester was not cooling enough. So I questioned my mechanic and he said it would cost $200 to do the check and probably another $300 to do a reinstall of the Freon. I decided that my best option was to try this product. I watched the YouTube video as to how to precisely hold the can attached the unit and how to adjust slowly let the product into the system not all at once to keep the pressures equal very helpful before installing I did use two cans, but probably wasted the second can about half of it. My temperatures out of the blower fans were about 55° before adding the Freon after the temperatures went down to about 39°. I have one happy wife now as her air conditioning is working as it was New.

Amazon shows this product when you search for R1235YF . This product deserves 0 stars as after using 4 cans(3 of them I believe had nothing in it) But support said they check and verify every single can before leaving their facility. support person’s response was mean and full of arrogance Don’t buy this, as this is not a R1235YF Refrigerant but a performance booster per supports response , which suggested to get car checked by Mechanic 🤔 I have used product from Walmart multiple times which worked every time with a single can on various cars I have owned over a period of 25 plus years , but this product doesn’t works and is total waste of money .

Everything worked out great, Will buy again if needed in the future

Self explanatory easy to use does exactly what it says it does.

Work great

My $69.99 investment was well worth it to restore the cool temps to my 2021 Kia K5. Especially in comparison to paying a mechanic $150 or more.

DO NOT BUY. I used both cans and now my R1234YF system is contaminated with 27% Hydrocarbon refrigerant. Cannot even get the system properly serviced now because mechanic recovery machines will not recover contaminated refrigerant. Still searching for a shop that can recover contaminated refrigerant to deal with this mess. To add, the cans were not even close to full.

Fit good... A/C working great...