Adjustable Tire Deflator, 10-30 Psi Tire Deflators Offroad Accessories, Auto Stop Air Down Tire Deflators, Air Down All Four Tires(4 Pcs)

These tire deflators are easy to adjust, accurate, and fast. PSI is in increments of 5; I deflate my tires to 24 pounds, so I estimated the deflators at just under 25 PSI and 3 of them deflated my tires to 23.5 while the fourth was 25. I re-set the 4th one time and it deflated to 23.5. I inflated my tires back up to 30 PSI, then 24 hours later I put the deflators on and they dropped each tire to 23.5 PSI. Very, very nice. I've used other deflators but these are the best I've found regardless of price. These greatly reduce the time and the hassle of my off-road ritual. Love them!

Used these for the first time on a recent 4x4 trip to air down tires. I picked 20 pounds and adjusted all to that setting. I had two tires with 20 pounds, one tire at 17 and the other tire at 12. The adjustable spinners twist very freely, a little too freely. The vibrations from the air coming out wiggles the spinners so much that they did not stay where I wanted them to be. I might try wrapping tiny rubber bands at the poundage I want to see if that keeps the spinners from moving. Would not recommend these.

These are made out of brass & worked this past weekend airing down my tires to ride on the dunes in Cape Cod. They even come with a storage case. We'll see how well these will hold up. I'll follow up with updates if there are any changes.Overall I would highly recommend purchasing these Adjustable Tire Deflator, 10-30 Psi Tire Deflators Offroad Accessories, Auto Stop Air Down Tire Deflators, Air Down All Four Tires (4 Pcs)Finally this review is of my own honest opinion & is not swayed in anyway by other influences.

they work, but double check your pressure with a real air gauge, the marked pressures are off by +-5 psi on 2 of my 4.

I set two for 15 PSI and two for 25 PSI and each one deflated to within .6 PSI below the setting. This is crazy accurate compared to the other deflators I've used. Typically I'll get within a couple pounds and within two or three attempts I get the pressure I want. These deflators nailed it the first time on all four units. I'm impressed.They look like they're built to last. The brass body, plunger, spring, and nylon seal all look like they're well made and made to last. I would buy these again even if they cost a bit more than the competition. The extra cost would be worth it to avoid the fuss of getting the whole set to a specific pressure. And these are reliable enough that I'm comfortable changing the pressure setting for another vehicle without spending ten minutes or more dialing them in.Highly recommended and a job well done to the manufacturer.

Takes the guesswork out of setting the correct pressure. Easy to use high quality tire pressure deflators that help save so much time and effort, yielding precise results every time, leaving more time to ride.These adjustable tire deflators are a must for landscapers, off roaders and DIYers alike, that need precise PSI settings. I know these are mainly marketed to off roaders, but, I use these with the my lawn tractor tires to ensure a level cut every time. Simply unscrew enough thread to get a bit beyond the desired PSI level, set the locking nut to that pressure marking and tighten the base. Now screw the deflator on to the tire stem, pull back and let go the device tip that gets the process going. The deflator will automatically stop when it reaches the precise pressure desired.A great tool to have handy in the garage, it also comes with a nice semi hard shell case for safe keeping and storage.

Love the little case that comes with these tire deflators! Makes these little guys look like off-roader jewelry!They feel a little bit flimsy when messing with the air pressure adjustment. However, once the desired air pressure is set(see my last picture) and the locking ring is securely tightened(see second to last picture) the tire deflators feel solid.After setting and locking in the desired air pressure; simply screw these onto your valve stem, pull the knob on the end, and walk away. Once the sound of air escaping from the tire deflator stops; you’re all set! Unscrew the tire deflator and replace with a valve stem cap. SUPER EASY. It’s almost a “set and forget” kind of set up.I set these to 15psi for my initial test. It took about 3min to take my 33inch tire from 35psi to 14.5. My gauge is not very accurate but I know it’s usually within 1-2psi of actual pressure. That being said I’m impressed with the accuracy of the one unit I tested.I only tested one of the deflators on my spare tire. I didn’t have a lot of time at my disposal when they were delivered but I was THAT excited to give them a try!My initial impression is that it works as advertised.I’m not sure if these are faster than my current air-down tool. The one I currently have removes the valve core entirely and usually takes 2min to air down each tire.I plan on doing a head to head air down speed test on all four tires with my old system and these new deflators. I’ll report back with an update to this review and possibly a video.I think it’ll be a close race. I can see the convenience factor of being able to set these, install them, and walk away, being a major selling point. I might even start enjoying a little AC, AWAY FROM BUGS, in the vehicle while waiting for the tires to air down automatically!So far I’m impressed. I would recommend these to someone looking for a simple and easy method to air down.Update:Used these in a real world scenario. My tires and I was REALLY let down…………Dad jokes aside; I had these set at 15psi to air down my tires for some moderate rock crawling trails. I started with the driver front and worked my way around until all four tires were airing down at the same time. It took a good 10min(maybe more) unitl they “automatically” stopped. Before I even checked my air pressure I could tell there was more air let out than what I wanted.Using my gauge confirmed what my tire deformation was telling me. The two front tires were around 7psi and the rears were around 9. This was a big waste of time. I had to get my air compressor out and air my tires back up to 15psi. I don’t know how one of these worked correctly when I tested it on my spare tire.This incident really made me lose faith in these tire deflators. I usually air down to about 12-15psi, depending on the heat and sand conditions, when I take my family out on the beach. I don’t think I can trust these tools to accurately set my tire pressure.It might take a little more time with my former method of airing down but at least that method is tried and true. My other tire deflation tool has an air pressure gauge, so there is no guess work IF I’m at the PSI I desire.Looks like what gave me the initial impressions of a great and convenient little tool turned out to be an absolute dud!No longer impressed. Very disappointed. I Will NOT include these as part of my off-road kit. I also do not recommend these. Especially if you don’t have a convenient way to air your tires back up!