4 Tire Air Deflators for Offroad Vehicles, Cars, ATVs, Jeep Wranglers and Four Wheelers - Valve Deflator with Pressure Gauge Automatic Deflating Brass Kit for Tubes and Tires (6-30 PSI)

These deflators are great! They're easy to set, work on a wide range of air pressures, are super-fast (they bring my aggressive 285/75R17 tires from 40 to 22 psi within two and a half minutes), and best of all are super affordable. Never again will you dread airing down your tires or wrongly choose not to - the entire process takes about 3 and a half minutes and only about 45 seconds of that time is actually doing work (screwing them on and taking them off, so hardly even counts as work) The setup process takes a little bit of time but can be easily sped up by going to a gas station with fast, free air fillups and doing the entire setup there. After they're set, they never have to be adjusted again unless you decide to change the point of deflation (PSI). One of my friends had a similar product from a different brand that was more than twice the cost and almost the exact same - least to say, several of my friends immediately bought Real 4x4 Deflators the second they heard the price and saw how well they worked. Highly recommended to anyone who spends time on any rough dirt, sandy, snowy, or 4x4 roads - combined with an air compressor, airing down the tires is worth it for almost any terrain that requires it. And ask anyone who knows what they're doing - airing down your tires increases your car's offroad ability more than most serious modifications. So if you ever plan on airing down your tires, don't hesitate to buy these for it. You'll wonder how you got by without them.

I purchased a set in January and one of the deflators was not working properly. It would not stop the deflation allowing one of my tires to deflate too much (Almost flat). I contacted the company and they were fantastic to work with. A replacement was provided and the setup was painless, quick and they work great!!! I’m dropping 35x12.5x15 from 35 to around 18 Psi with no issues. Pros: Easy to set - up to the proper pressure - follow the directions exactly and don’t try to be smarter than the manufacturer Quick to use Good case Seem to be great quality Cons: With the replacement - no issues The bad valve was problematic out of the box but made right by great customer service The included pressure gauge - it’s a joke - if you are buying tire deflators then you already have a quality gauge and air up equipment on board

I have to set these up I have not used them yet. They seem like good quality. Do not take my word look at other reviews

I had nothing to compare these to but I had heard from another off-road friend that this type of product existed so I searched and decided on these. they are simple to use once you understand how they work. They are pretty accurate. After calibrating 1 of them to my desired tire pressure I just used that one and rotated it on to all 4 tires which made them all the same pressure. You also can calibrate all 4 of them and then use them all simultaneously. OR.. if you want a set of them calibrated at different pressures you can find some way to mark each one and then choose which tire pressure you want, then move that 1 cap to each tire. Anyway.. not trying to confuse anyone.. these really do work as advertised and come in a nice little pouch to keep them together. They also came with a tire gauge but I didn't use that.

After taking them apart to lubricate them, they seem to work ok. I don't trust them yet to take to the trail though. I will need to do some more driveway testing to make sure they will reach the right pressure. During initial setup two of them drained the tire to 10 psi and were still releasing when I tapped them, at which point they stopped. The 1/2 turn = 3 psi is not true for my set, each was slightly different. I ended up taking them apart, wiping them with a shop towel, and spraying wd-40 in them. One of them stops and starts but eventually gets to the correct pressure(I think). I'll try to remember to update after I've done some more testing.

I bought a set of these to more easily deflate the 35" tires on our truck before driving out on the beach every weekend. On large size tires, deflating from 50 psi to 18 psi can take a while, meaning you have to kneel down the whole time to push the valve and constantly check the pressure. It's a pain to say the least, especially in the hot sun. These valves do exactly as described and are easy to setup and use. It took approximately 10 minutes to set the valves to the proper level and the rest is cake. We installed them yesterday when arriving at the beach access ramp and within 5 minutes all four tires were down to to the exact 18 psi I set them too. I verified this with a manual gauge. I couldn't ask for a better product. Definitely worth a look.

These are so easy to use! You air down, set the deflators once and you're done! The next time you go out and want to air down you just stick these on and they start releasing air! They stop once they get to the PSI you set them to. The only downside is sometimes they'll get turned by accident and it won't deflate as much or it'll go too much. So you'll have to reset them. Also, we haven't figured out the pressure gauge. It doesn't look like it'll fit the valve the way it is right now but we have to get a battery for it since it doesn't come with one. All in all the deflators are definitely worth it.