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Thread: VIAIR 400P-Automatic Compressor Kit

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  1. #1
    Lifetime Member Getting Dirty Matt's Avatar
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    Yeah I knew something was off when I went to Northerntool and saw gauges for $10....

    Check this one out. It's grade-A (+/- 1%) and liquid filled:
    http://www.grainger.com/Grainger/SPA...MX9?Pid=search
    $40... still better than $80! May get that for my shop gun since that gauge is off.

  2. #2
    Lifetime Member Getting Dirty Matt's Avatar
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    Hear back from VIAIR. I was right... they basically have the high pressure gauge on there because the compressor is capable of reaching 150 PSI, so they really couldn't do anything for me.

    Just ordered this guy from McMaster: http://www.mcmaster.com/#3846k16/=fmww9f
    $11

  3. #3
    thats pretty cool! wonder what the "auto" mechanism is... i have an air pump that looks remarkably like the one you ordered a couple fittings and we're off!

    here's the one i've got:

    Last edited by collinsgto; 01-02-2012 at 07:57 PM.

  4. #4
    Lifetime Member Getting Dirty Matt's Avatar
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    Almost all VIAIR pumps look like that, but each has different features & intended uses. What does the tag on the pump say? Should have a part or model number on it.

    I bet its one of these:
    http://www.viaircorp.com/OffRoad/compressors.html

  5. #5
    and you'd be correct! its a 450C. looks like i'll need to get a reservoir tank if i plan on taking this on the trails with me.

  6. #6
    Lifetime Member Getting Dirty Matt's Avatar
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    That 450C is a sweet compressor!! An air tank and a pressure cutoff switch and you're set.

  7. #7
    Lifetime Member Getting Dirty Matt's Avatar
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    Got my $11 gauge from McMaster today... this'll give me a bit more accurate of a reading


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