Spurtar ATG-007D 4-Pack Air Compressor Replacement Parts, Pressure SW Relief Valve, Exhaust Valve, Tire Changer, Bead Breaker, Deflator, Suitable for 41-206 kPa (6-30 PSI), Air Release, 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.

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.