Teraflex 4807200 Air Deflator

I go offroading often and air down from about 35 PSI to 15 PSI for sand, and around 20-25 PSI for rocky roads. This thing is great and makes it easy to air down all four tires at the same time. Its very fast, so I have to keep a close eye on it to not go too low. The coolest thing is its easy to put a tire gauge on it to check the PSI without having to take them off. It's a really cool , inexpensive, convenient tool for us offroaders.

Works great for airing down. Super simple.

Just used it for a trip to Pismo. I have a Siverado 2500 with tires at 62/72 psi front/rear, and 4 trailer tires at 65 psi. These made airing down all the tires to 20 psi a breeze, by myself. I had considered purchasing the more expensive ones that you can set pressure to, but I'm glad I saved the bucks and went with these. I started with one tire on the truck and put these on each truck tire consecutively. I had plenty of time to return to the first tire and check the pressure with a standard gauge, as it was releasing air.. Took a few minutes for the pressure to get to my desired 20 psi, which then I moved to the next tire and did the same, until all the truck tires were completed. Then I moved to trailer. I was done before the other rednecks were done next to me, using 4 guys and screwdrivers/keys.

These are great. I keep them in a small pocket in my truck along with my pressure gauge, and they just work so well. When it's time to air down, I screw one onto one of the tire valves, then wait for about 50 seconds before doing the same on the next tire. 50 seconds later I move on to tire number 3. By that time, the first tire is just about at trail pressure and I can remove the first deflator. Then I put one on the last tire, by which time the next tire is ready. Then I just monitor the last two tires. They make airing down so much faster and so much easier. They are a must have for off roading in my opinion.

Works really well for letting the air out fast. I had previously been using the head of a pen-gauge that I snapped off, but I had to stay there the whole time on a single tire.I will say the only downside is that one of my four seems to let the air out much slower than the others, but I just swap to another piece once i finish up the other 3 tires.

I bought these to air down the 33 inch BFGs on my Cherokee when out 4wheeling. I like the fool proof and simple design. Absolutely no moving parts. Just remove the valve cap, screw these deflators on, and they hold down the valve stem to release air. To stop deflation, simply unscrew the deflators until they no longer depress the valve stems. When you achieve the desired pressure, remove the deflators and screw them together to make one unit.When I air down, I usually screw them all on the tires at once. Then I wait about aminute since they let out ALOT of air. Then I go back and unscrew the first installed deflator since it's been on the longest and quickly check where the pressure is at with a good gauge. If it's close to the desired pressure, I'll quickly go to each other tire and unscrew the deflators to stop the air down process. Then it's just a simple matter of releasing the air slowly out of each tire to achieve the desired pressure. Easy peasy lemon sqeeezy.Why do I like these? First off, there's no moving parts to wear out. They're made of heavy brass, so they should last a long time.Secondly, you don't have to loosen or remove the valve stems and risk losing them. If you lose a tiny valve stem and don't have extra, you've just screwed the pooch.Third, the four deflators screw on and off each other to make one unit. It even comes with a key ring. Easy to pack away, easy to carry.Sooo...Are there better and more expensive deflators out there? Yep. But most of them require you to loosen the stems as I mentioned earlier. Dont much like that idea. Some let you check the pressure while the tire is deflating, but for the price, I'll just turn mine a few turns and check it with a gauge. So simple. Dont over think these things, people. Simple and reliable is what you should be concerned about. These deflators screw together and pack away in a size not much bigger than a sharpie pen. They might take a couple minutes longer to use than the fancier types, but in the extra time it takes, you SHOULD be inspecting your rig as you do your walk around. Fuel for thought, and my 2 cents.

I've used these deflators for several years now for airing down before going on rough 4WD roads. These are affordable, simple, and they just work. I air down 265/75/R16 tires from 40 PSI to @ 20 PSI. I have time to install one of these on each tire, then make my way back to the first tire, check the PSI, and then untwist the deflator on that tire, and move to the next. The fact that they all screw together makes it much easier to keep them together, and to know that I have them all after airing down.

Lost my first one off my keychain before I got a chance to use it due to a bad carabiner... ordered a second one and finally got to use it. It made airing down much more convenient and quicker! I would buy it again if I lost this one too. (I did get a locking carabiner after the first one...)This is especially nice to have in the winter because the air is so cold when letting air out manually.

Seguido voy por caminos de arena y me ha resultado muy útil esta herramienta para bajar la presión de las llantas.

Has these for a year. They deflate tires fast enough and are simple to use. Pass-through design lets you stick a pressure gauge on it to check pressure while the deflator is on the valve stem.

ちゃんとしたと言えばおかしいかもしれませんが、虫から外すデフレーターの方が抜くのは早いです。この商品は取り付けると勝手にエアが抜けるので時間差をつけて取り付けると４本一気に抜くことができます。取り付けた状態でもエアゲージが使えますので、慣れるまではちょこちょこチェックが必要です。大体の時間がわかれば、取り付けてしばらく一服することができますが、放置するとタイヤがぺったんこになるので注意です。コンパクトなキーホルダータイプですので場所を取らず、自分は車のキーに付けています。それぞれにネジが切ってあり、連結できるのですが、気が付けば１個無くしてました泣こまめに増し締めすることをおすすめします。

As advertised, work perfectly. Would love to see something from Teraflex in this price range with adjustable valves you can set to preferred PSI

son muy útiles para desinflar los neumáticos off road