Q Industries MF1089 MasterFlow Twin Air Compressor

• Inflates eight 33 inch size tires in less than 40 minutes
• Carrying bag included
• Perfect for compact to full size vehicles and inflatables
• Rubber anti-vibration feet
• Fastest of it's class

Bought Viair 300 this Dec/09 and 2 weeks later a superflow MF 1089 for my son. I decided to compare the inflation pressure attained by each compressor at a run time of 90 seconds for each. Using my spare tire 245-45-18 deflated down to zero PSI.
My results: Viair 300 attained 32.5 PSI at 90 seconds.
MF-1089 attaine 35.5 PSI at 90 seconds.
Durability and reliability are different issues and only time and usage will tell. To me, they both look well made. Viair is a single compressor and MF-1089 is double.
Viair weighs about 8 Lbs & MF about 18 Lbs. Viair has standard quick connectors while MF.s is not. It.s their own but it's well made. MF 1089 has more versatilities with their tire chuck connectors and is priced less than Viair.
My personal preference: MF 1089.

Save Up To 90 Off Now

We have a Class A motorhome, diesel pusher with 22.5 inch tires. We wanted a pump that we could stow so we would be able to air up the tires whenever needed. This pump does the job.