Masterflow 12v High Volume Air Compressor / Inflator

Needed a good HD compressor for my RV for peace of mind while traveling. I use it to winterize my RV with the air pressure technique as well as adjusting tire air pressure as needed. Team it up with the tire repair kit, and save $$$$$. Also can help a fellow RVer if needed.

Only 4 stars because the gauge can be, and is, and labeled on the face off by +/- 3lbs. It was 4lbs under on mine. At least they admit it. But for sub $50.00 on sale its lots of pump power for the money. I am familiar with this pump design and its the minimum type or style one should have. The small plastic box types with with claims of HUGE psi capability and 12v accessory plugs are junk and can take 30minutes to fill a small tire if the cable does not over heat and blow a fuse in the car or pump power cord. (its not about how much psi it can reach but is about volume, all you need its 32psi but faster) It weighs 10lbs on my scale. This pump has battery clamps and a 30A in line fuse. I purchased the pump to keep in my trunk with a plug kit and needle nose pliers to avoid having to put a temp spare on for a simple puncture or slow leak. The pump is well known in some off road communities and there are several posts on mods and repairs they do to the little pumper. But they use them every day or put several hours on them in short time spans. For an emergency pump its fine as is. One suggestion they recommend is to check all the screws for tightness right out of the box. I did so and found some that needed it. I pumped up a Dodge Charger 235/55R 18 tire from flat to 32 psi in 2min 5 sec. I have done this scenario before on my truck. Approach the flat, find the the source of the leak if visible, if not visible pump the tire up so you can roll it to see or hear the cause. This is the only pump this company makes wort having. Catch it on sale.

Compressor works perfectly. I love that its compact and I can keep it neatly in the carry bag in my trunk. I have a leaky rim and really appreciate being able to put air in my tire at any safe location as the compressor is powered directly from my car battery. My husband has a big bulky compressor that plugs into the wall but mine beats his hands down. It inflates quickly. I do however keep a digital pressure gauge as the attached gauge may be off by about 4psi.

Works great for big tires. Smaller pumps take too long to fill and frequently overheat. Only regret is that the power cord is too short for big vehicles.

you can actually get All your vehicles air pressures correct at one time. No more waiting for the pump to cool down after putting several pounds in 2-3 tires. I did 8 car tires and 1 motorcycle. Will need an adapter for rear m/c wheel.