GSPSCN Silver Dual Cylinder 12V Air Compressor Pump for Car, Heavy Duty Portable Tire Inflator 150PSI with LED Work Lights for Auto,Truck,SUV, RV,Balls etc

Let's start by saying that I have purchased and tried almost every tire inflator in the market around and below the price range of this one. And I had almost lost hope, but I went ahead after reading many reviews and purchased this one. I am very glad I did, I works flawlessly, it lives in my truck and works EVERY time , I like it so much that I have bought 3 more for my family members. Don't search anymore I already did the legwork for you, from small tires to trucks and RVs this is it, just get it. NOTE: If you plan to leave the tire inflator in the car all the time do not buy the one with the digital display and autostop feature, it will give you problems.

Nothing about this tire inflator appears to be heavy duty but for casual use it should do the trick.The battery clamps do not have enough spread between the red and black clamps given how much plastic and ungrounded metal there is in cars these days. I struggled to find something metal that I could put the black clamp on given the limited cord available but did manage to find something to clamp on to.The power cord itself is very long and the air line (which is two pieces: a short rubber line from the compressor with a connector for the coiled plastic air-line) in combination. are long enough to reach both tires on each side of my wife's Ford Escape. I also purchased a Lumiteco thread-on short hose and air stem chuck to both extend the reach of the air-line and make the process of connecting and disconnecting from the tire valve stem much easier. I wish I had got one years ago for my previous auto air compressor.The pressure gage is off by about 5 lbs but I haven't found a gage yet on a small tire compressor that was accurate. I always use my tire pressure gage to verify the tire pressure.The pump topped off the tires very quickly and is pretty quiet.This compressor does not appear to have a thermal overheat shutdown protection feature so be careful how long it is used continuously (the manual says 10 min) or the pump motor may burn out.For casual use it should do the trick. I don't know how well it might survive repeated use, for example airing up Jeep tires after off roading.Final assessment: should be ok for topping up low tires several times a year. Run it at twice a year to keep the seals flexible and the bearing points lubed.Follow up: after several uses over 11 months, I hooked up the compressor to top off tires. After one vehicle, I started to hear an air leak when the line was connected to a valve stem; it sounded like the compressor was leaking back through the internal valve. It took 20 minutes to put 5 lbs of air into a 20" tire. I subsequently discovered that the coiled air line was unscrewed somewhat from the fitting that comes from the rubber line that attaches to the compressor. A quick tightening and all was well. Check the tightness of the connections before each use!

I bought this about 3 years ago and just kept it in my vehicle. I have only used it only a few times but its works well when you need it but as with most compact pumps it its not too fast, taking a couple minutes to raise pressure maybe 10 psi. It takes even longer to pump up a fully flat tire (as I just did in a public parking lot maybe 6 min) but it eventually inflated the tire to 40 psi and I was able to drive home with the nail in the tire that caused a slow leak. I recommend performing a simulate test at home - know where your vehicles power point(s) are and how to run the wires as you may need to run the wires (if necessary) through the center of your vehicle, attach the coiled extension (if needed) and attach the pump to your tire and turn it on with the vehicle's engine running (to charge the battery). Test the pump to make sure pressure increases and the pump functions correctly and that you are able to set it up - in general understand how it will be used for filling any of your 4 tires before you actually need it. It sounds silly, but when you are stressing with a flat on the side of the road at night in the cold this knowledge and familiarity will help you! The only reason that I didn't give it 5 stars is that its a manual on/off switch and I have used similar pumps that can be set to shut off at certain pressure so you can set it and then focus on something else while your tire is filling up which takes a few minutes and I find this to be a handy (be not necessary) feature. This pump needs to be monitored and manually shut off when the appropriate pressure is reached. I also recommend buying a tire plug kit and keeping in the storage bag which this pump is in along with a cheap small flashlight and maybe some lightweight gloves to keep your hands clean.

I've bought 4 of these over the last few years, that's how good they are. I keep 1 in each car and my truck (which is also my 34' trailer hauler). They're fast even for my large truck tires. It's a little noisy, but then all good air pumps have that high-pitch rattle/whine, though this one's definitely quieter than most. The emergency light has been a huge bonus when working at night, too, though I still highly recommend having a rechargeable LED flashlight on hand. The power cable is really long, easily letting me plug into the AC port of my truck's dash and reaching all tires w/ ease. Best of all, I've found the air pressure gauge to be pretty close to my calibrated pressure gauges, the worst only being off by 2 lbs on the high side. While not a deal breaker, having the multi-compartment carry bag is a pretty nice touch, and it closes with zippers so small adapters don't fall out and get lost.Overall, it's a bit more expensive than cheap air pumps, but this one's extremely versatile and reliable, well worth the extra little cost. The manufacturing quality is higher than expected, too, and that can't be emphasized enough.