🔧 Enhanced MASTERCOOL R-12/R-134a Valve Core Repair Kit for Optimal Performance Review

Good service package for our fleet. Rather than buying them in two packs, this is the way to fly. I personally change them every time the air conditioner is serviced in our shop. Use this kit to prevent returns and slow leaks!

I bought this valve repair kit for my WJ Jeep, I was able to replace the valve and fix the leak. Now I can also repair other cars. I would recommend this kit for people who have multiple cars, if you only buy this kit for 1 car then it is quite expensive.

This is a good basic A/C valve kit to have on hand if you can't find a dealer to purchase the correct valves. The kit does not include the valves required by the Volvo but pretty much everything else is included. I stopped at a Volvo dealership and bought a few to top up the kit.

Very good range of valves with good reason 4 stars because no kit contains all the valves that will be needed once but the price is very good to have on hand if you messing around with air conditioning works purchased separately at the parts store will set you back 3 times or more per set. Handy to have on hand when needed.

I had to replace one of the valve cores on my '96 I30 due to a small leak in the AC valve core. I worked on the air conditioning anyway (new dryer and air conditioning compressor). This kit also includes a coring tool! Nothing could be easier than that! I think this kit comes with all core types available.

Too expensive for what you get. I've been burned by Revain before when they seem to focus on or narrow your choices down to what to buy. The lack of knowledge about this product cost me as it turned out. Since I got this there have been several half price alternative kits. I'll get some benefit from it over time, but I won't be happy to spend more than I have to.

My mechanic was having trouble finding replacement Schrader Valves for the car at the shop. I brought him this kit and he was delighted to get the car after the parts stores supplied all sorts of wrong ones. This is a great kit for a shop or DIY shady tree mechanic. I do a lot of air conditioning at home in my garage so buying one was a great idea. Now I have it in my shop!

This kit is for dad, dad with kids and cars or professionals. Large selection of parts and covers for most models. Air conditioner. I recommend swapping the fittings on both the high pressure side and the low suction side. Don't waste your entire freon load and start over with a 30 minute vacuum pump. For the cost of this collection it's not worth buying 1 or 2 items from the retailer at the top price. You can buy this kit at the same price!

Great product, good range of different Schrader valves (yes there are different valve sizes) and a great removal/replacement tool. Couldn't find anyone in town (Baltimore) with the right tools or Schraders to change the low/high valves on my 2002 Jeep Liberty 3.7L V-6. BOTH leaked in both smell and dye tests. I was almost ready to take the jeep to the dealership until I found this kit. It was a bit pricey and I didn't want to move (even after first buying two other cheaper tools that didn't…