Kobalt Quiet Tech Air Compressor High Flow Coupler Upgrade

What’s going on guys? It’s Hai.

I recently showcased the Kobalt Quiet Tech Air Compressor that I recently purchased and in this blog, I’m going to show you the first upgrade that I did to it and that’s switching the stock industrial-sized couplers for a high-flow option. The particular couplers that I’ll be using are the Milton HighFlow Pro V Style, part number S-765.

According to Milton’s packaging, this upgrade can provide an airflow increase of up to 70%.

To remove the stock couplers, I’ve found that the easiest way is to just get a wrench in from the bottom and loosen the couplers from there. Lefty loosey, righty tighty. It’s kind of annoying doing this upgrade because there’s little clearance anywhere. You might have the urge to remove the top plate but, just take my word, there are various parts that are screwed to it. You may have more access by removing the plate but then you’ll have parts dangling and I think it would be even more difficult to torque everything down that way. So, just take your time and do a little turn at a time from the bottom.

When you get the coupler out, it’s just a matter of replacing it with the new high-flow coupler. Just remember to use some Teflon tape or other thread sealers to help prevent leaks.

Now, to really maximize airflow gains, you’re going to want to also upgrade your other fittings. I purchased a Milton kit, part number S-217 and it has the various fittings that you’ll need to connect a hose to the air compressor and tools to your hose. Then if you need more male fittings for tool connections, they are readily available online and at a very affordable price.

And that’s about it. This is a very easy install with a lot of potential gains depending on your setup. Not all tools will be able to capitalize on the increased airflow but that’s just how it is. Do your research and figure out if higher-flowing couplers can benefit your setup.


If you're considering buying any of the products mentioned, please support my work by using the links below.

Milton Industries S-765 HI-Flo V-Style Couplers https://amzn.to/3Y4CXWd

Milton S-217 1/4" NPT V Style Coupler and Plug Kit https://amzn.to/3DhjgCr

Milton Industries 760 1/4" MNPT HIGHFLOWPRO™ V-Style Fittings https://amzn.to/3jfc6rJ


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