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36 reviews | 3.9 out of 5
I was deer hunting in my jeep. I lowered tire pressure for a softer ride. At the end of the day I used the Masterflow Air Compressor to refill my tires and it worked perfectly. I have 31" tires and I dropped the air pressure from 36lbs to 20lbs. It took 3 minutes to restore my original pressure.
I put the Masterflow 12v High Volume Air Compressor/Inflator to the test, and it passed with flying colors. I released all the air out of my truck tire on a scortchering 100 degree, miserable hot summer day. I did this because I did not want to stay out there longer than five minutes. I timed how long it would take to fill up my tire and it did it in under three minutes(with the engine on of course). It was very quiet, no vibration and performed very, very well. Had it not done this in less than five minutes, I would have returned it. I'm happy to say that in the event of an emergency or if I leave to work one morning and find that I have a flat tire(like it has happened before), I can depend on this product to bail me out of a difficult situation fast, instead of putting on the spare tire and being late to work. The only thing that I didn't like is that the guage does not read accuratley, but then again I always have an air guage in my truck to check my tire pressure. The important thing is that it does what it says it can do and that is worth buying.
Was very pleased to find the the hose snapon fittings were North American standard so I could use my existing air hose and tire fittings.
It is AMAZING product. It clips directly to car battery so you do not have to worry about blown fuses, oppose to ones that’s plug directly to car cigarette lighter. I use it to fill my portable air tank and it fills it up to 120 PSI pretty fast. It does get Really hot on the head and hose connector so handle it carefully after use. It does come with nice carry bag. Some users suggested taking off air filter and then store it in the bag but if you are patient you can store it inside bag without taking off air filter. By the way air filter is made out of plastic and it looks like it can break easily. One more thing, before you start filling air in your tires or air thank run compressor for a minute or two because condensation inside compressor and inside of hose. If not a moisture will go inside your tires or your thank. Hope this info helps.
Used it once so far. It did great on filling up my trailer tires and my dune buggy tires. Seemed stout.
I hadn't even tried out my Masterflow 12v compressor when I put it in my truck for a drive up to N. WI to pick up a scooter we'd bought. We spent the night in a motel and found one front tire totally flat in the morning. I got out the new compressor, set it up (very easy), hooked it up to the truck's battery (with the engine running) and attached the compressor to the totally flat tire. It inflated the tire to 35 psi in less than a minute. There was no apparent puncture to the tire so we drove about 5 miles to the closest town, where we discovered that the problem was a loose stem valve, easily tightened. Without the compressor, I'd have had to change to the spare, a big hassle under cold snowy conditions. If you need a 12v compressor for big tires like a full-size pikup or an RV, BUY ONE OF THESE!
Within one week after purchasing it was used three times. One planned and two unexpected. And the nicest feature about this product is the carry bag it is stored in. Very well made and sturdy.
It pumps very fast. The pressure dial goes from 0-25-50-75-etc. When you start pumping the dial on the gauge goes to 125-150 so you cannot tell how much pressure is in your tire, I use 70 lbs in my rear truck tire and I cannot tell how much is in the tire so I have to keep using a hand tester or blow the tire. I find it hard to use, so I returned it.
Airs up a tire as advertised and is very quiet for a small 12 volt compressor. The only negative is the power cord to the battery is to short to reach the rear wheels for an extended cab pickup truck.
The compressor works as advertised. It will in fact pump up a 265/75/16 truck tire in less than two minutes. Overall the compressor is well built with the exception of the air intake filter housing which is made of plastic and is fragile. I have replaced this with a 1/4'' pipe nipple and steel filter housing and also have attached a one gallon air tank with a pressure switch, cut in at 30 lbs. and cut out at 90 lbs. This has reduced over heating greatly and still allows plenty of working pressure without over working the compressor. This has added slightly to pump up time, but hopefully will greatly add to the life of the compressor.
3 important issues to consider:
1. Is the 'battery connection' clips ONLY & cord length sufficient (hard to extend a 12v cord, 120v easy) too short for me.
2. Does a 'non clamp' screw-on ONLY air connector work for you (high pressure, low volume uses lose WAY too much air when removing screw on connector!!!!)
3. It blew fuses rather than start pumping when I had it connected to a 85lb pre-pressured tire to fill it to 95lbs, spec says (125lb or 150lb pre start pressure is max, not true for mine at least !!!!)
Otherwise, I thought it a nice quality no-tank air pump, good for that quick fill & other duties I imagine, but the screw-on only is NOT good if you have any issues with getting it off quickly, I prefer the Flip-off fittings seen on more regular type tire pumps!!
Rating depends on your uses!
This pump works great out on the backroads of America.
I bought this on a friends recommendation when I got a tent trailer. It is small enough to keep in the car and it runs well off of the car battery. The first night we camped I used it to fill up the trailer tires, which were in dire need of air, and I also used it to fill up the car tires. I did this at the campsite. It was a great releif to not have to try to pull the trailer into a gas station when 9 times ot of 10 the air does not work at the station and there is no pressure gauge. This product is a keeper.
Well made and powerfull. Nice case for storing in the trunk.
I haven't needed it yet but it seems heavy duty and like it will do any job it will encounter from the trunk of my wife's car. Carry case is nice, but you can't put the assembled compressor in it. There's a flimsy plastic air filter that needs hand screwed to the intake and a decent coiled plastic air hose that needs connected for use, both of which need taken off to put in carry case. For the price, it seems a good deal.
Got it out, hooked it up, turned it on. Ok. Hook it up to my bike tire and it bogs down. won't pump up anything. here we go. call the manufacturer, recorded message says to email them with any concerns. waiting to see what they say...
Really wanted an ARb but could not justify the cost for an item that may only get used once or twice, I dislike the air cleaners cheap construction..
I have researched this product prior to purchase & know wht to look for etc.
its a good bang for the buck
may mount it in my engine compartment & have it ward wired...
Great compressor for the price. I've had mine for 6 months and its good so far.
We use these pumps on the farm to fill large tires that are away from the main shop. We purchased this one to replace one that we used for three years. The old one just finally pumped its guts out. The price was good and pickup was at a close by location.
An excellent 'dedicated' compressor! Setup was easy and the "fill-time" was quite Short!