SuperFlow Portable Air Pump, 12 volt Air Compressor, Tire Inflator 140 PSI, 12v air compressor for Cars, Trucks, and Bikes.

I bought this SuperFlow compressor from Amazon over a month ago and used it every 3-4 days since then to pump up a slow leak (which I finally got repaired yesterday - a nail in the center of the tread). Here's my $0.02:My old 12v compressor has a quick-fit, clip-on fitting that keeps slipping off the tire valve. So I decided to replace it with a compressor that has a threaded fitting that screws onto the tire valve. When I found this SuperFlow compressor on Amazon and read the reviews it appeared to be just what I was looking for. When it arrived, I was surprised that something so small was so heavy. I was pleased by what appeared to be a well-designed and well-made unit in every detail.Here's what I like: All-metal construction (which is why it's so heavy). A fitted nylon case with dual zippers and a flap with two buckle closures. Unlike my old 12v compressor, the air hose unscrews from the compressor body for easier storage in the nylon case. The on-off switch is on the compressor body, and not the power cord. That cord is long enough to reach every tire on my LS460 with at least a foot to spare. The top of the compressor has a built-in dial-type pressure gauge, with a removable cover, that is claimed to be accurate to +/- 10%.But how it looks and feels tell only part of the story; the other part is how well does it work?The SuperFlow is much faster and quieter than my old compressor. Sure, there is a little air loss when you unscrew it from the tire valve, but it's no big deal. I realize that the engine should be running when you turn the compressor on, but I wanted to see if it drew so much amperage that it would blow a fuse in my lighter circuit. So I ran the compressor with the ignition in the on position (my cigarette lighter is switched) and the engine not running, and I had no problems.This little pump is big on design, construction, and performance. It exceeded my expectations. I'm glad I spent a little more because I got the best!

I bought this to replace a compressor from Slime Co. that I just sent back. The Slime one ran for 5 minutes, and smoke started pouring out of it. Stopped it, let it cool overnight, tried again, same thing. It came with a note (not mentioned in its advertising or on the box where you can find out before buying) that it should not be run more than 10 minutes at a time, but it didn't even last that long.This HV35, while not quiet, is noticeably quieter than the Slime Co. one. And it pumped my 7-gallon air tank from 50 PSI to 105 PSI in about 15 minutes. That's perfectly adequate performance, and quite good for the price. The sheilded output tube got pretty warm during that time, and the pump body got hot, but that didn't seem to affect its performance. No smoke, no slowing down, or other signs of distress. I consider this compressor to be a very good value for the money. It would be nice to have a clip-on output spigot rather than the screw-on one, but that's a minor quibble.It comes with a peel-off label on the gauge, that says it might read as much as 10% higher or lower than the actual pressure it's measuring. I found that to be true - this one reads about 10% higher than three other gauges I measured it with.PROS: Compact, not as noisy as other compressors, takes reasonable time to pump up an air tank. Low price. No performance problems.CONS: Gets kind of hot, but most compressors do. Screw-on spigot instead of snap-on. Gauge needle quivers as it runs. These are all minor complaints.I consider this compressor to be a good value for the money. It would be nice to have a clip-on output spigot rather than the screw-on one, but that's a minor quibble. I was looking for a compressor that would do the job and not give me the grief the cheaper Slime Co. one did, and this one fills the bill.

In pile of deceptive advertisement, gadgets and attachments that don't need to be part of the basics, devices that don't work by design,..... this one made it past first test.I inflated both bicycle tires in less then 5 minutes and 4 letter word never crossed my mind.Looking at compressor, simplicity is a key in functionality, hose screwed on both ends without any flaw, sealed valve instantly.Tires went from no pressure to 30 PSI literally in matter of 15 seconds or so, I keep two small 12V rechargeable batteries in a garage with cigarette lighter attachment to leads so didn't even have to loosen up the power cord.Next, I let some air out of truck tire and repeated the process, tire pressure went back up quickly with no sign of struggling, threads are perfect on both ends of rubber hose and it is easy to engage and disengage it form compressor and valves.Simplistic design with handle is very effective, minimum amount of plastic used, has potential to survive few bumps and bruises.!40 PSI in such a small package makes it good choice for carrying in car trunk or behind back seat of a truck.One thing I am not so hot about is label burned into pressure gage window stating that accuracy varies by +/- 3 psi, it interferes with dial but this in itself is not an obstacle because I use another gage to fine tune final tire pressure.If it dies on next attempt to use it, I'll come back with sticks and stones, but as of now, I recommend this unit for its good value, small yet potent capacity, portability, simplicity and functionality.I am sure I could work this thing in pitch black darkness but small flashlight in my pocket can be useful as well.