Spurtar Tire Deflator, 6-30 PSI Air Down Tire Deflators Offroad Accessories for Jeep, Car, Truck, Motorcycle, and ATV (4 Pack with Storage Bag)

I purchased these for my 2012 Jeep Wrangler because I drive on the beach fairly often when I get a chance. It took a little bit of playing to get them set to about 16-18psi, but now that I set them and locked the setting, it seems to work great. There is a slight variance in the psi for each, but that is due to how it works with a screw and spring. I think it’s perfect for my use since it is just out on each tire at the same time and I don’t have to stand by each tire one at a time and air down. I don’t mind if they are off by 1-2 psi for that, and even if it was an issue, I can dial it in with a tire gauge at the end and still save a lot of time. It only takes a few minutes and I’m ready to play/drive in the sand!! I added some silicon lub spray that I had, just to make sure it will last, but I’m not sure that is needed.

They get the job done after you calibrate all of them

I got these a about a year ago and have used them a handful of times. Once you set them they're easy to use. The only problem is, as the pressure gets lower they get much slower which I guess is only natural. I've found them to be reasonably accurate but not enough for me to forego using a reliable gauge on the tires. I suppose I'll do what others have mentioned which is put them on and go ahead and drive a little bit. That would really work well on vehicles that will display the tire pressure on the dash but unfortunately mine doesn't do that. I do recommend these as a cheap way to air down. Just understand that you will have to be patient.

Automatic tire deflators. I ordered the cheapest I could find on Amazon. Reviews were pretty good. I couldn't find any difference between the $13 and $80 set. What I learned. The $13 set claims pre set to 18 psi. They were not. Claim 3 psi increment, not that I can figure out. So, it took about 10 minutes per piece to get them adjusted. It takes 7.5 minutes to drop 15 psi. It's easy, they seem to work testing them in driveway multiple times. Will keep testing them.

I’ve had these for almost 2 years now and haven’t had any issues with it. I’ve got them set to 16-17psi. They deflate the tire fairly quickly from 37psi to 22psi but takes a bit longer to down to 17psi. If I’m in a rush, I just screw them on and start driving slowly. Once I’m satisfied with the ride quality I stop and pull them off. It drops the pressure faster when your on the move. Overall, for the price these can’t be beat.

These appear well built and feel solid. I adjusted all four for the same pressure on the same tire. However, when I used them the results varied as much ad 5 lbs pressure. Convenient by springs are a cheap metal resulting in inconsistent pressures. If you use these with lockers, check your pressure to avoid damaging your vehicle

We need to air down six tires on an RV to drive on a beach sand road. Using these makes the task faster and much easier. They are easy to use and do a great job.

Works exactly as needed. I Set them to 20 psi the first time I used them and they do it every time now! They do get a little slow at the end but saves a lot of time just knowing you can throw them on and it will go right to what you need.

No storage bag included as mentioned in the description. Item received in small carton that's it.

Looks like good quality haven’t test them yet fast delivery thanks

Work great, really saves time airing down

it works fine, easy to set and yes it takes 4 min to deflate (time will vary according to your size and desired deflation) but i think it made deflation easier.

Not accurate but time saver for sure