The 400P EF is an updated version of our popular 400P Portable Compressor. It features VIAIR's new EF (Enhanced Flow) Technology that delivers up to 10% faster fill and 20% more performance, getting you back on the road faster than ever. EF compressors also feature an SAE power cord that allows you to use different power attachments for m
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I used my new 400P EF for first time today and i was very impressed. I aired all four tires in short time on a Silverado. The tires are LT305/70R15's. The rear tires took me about 5 minutes each to top off at 35 psi. The front tires took me about 10 minutes each to top off. I am very happy with the 400P EF. The quality is top of the line. I highly recommend this portable air compressor.
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Nathan · July 24, 2026
Haven’t had to use it yet, but tried it out and seems to be working. Just nice to keep in my truck.