Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter

• Pipe Size is 1/4 NPT, Nominal Airflow is 45 CFM, Filtration Rating is .01 Micron and the Maximum Pressure is 125 PSI
• Temperature Range is 32-175 F, Replacement Element is M-7231/4 and the has NPT connections on bottom
• Made in USA
• The ultimate defense against damaging dirty air by removing particulates, condensed moisture and oil aerosols down to .01 microns in size
• Unit will mount in spray booths, on plasma cutters or on other equipment requiring ultra-clean air and a flexible connection

I didn't buy mine here but with no reviews for the Motor Guard here i had too. This filter is awesome I live in Northern California and the air is wet I could full a cup every day from my compressor. I have my motor Guard inline right before my CNC plasma and i don't get a drop of water coming from my plasma. I would recommend Oil/water separator before the motor guard to catch most of the water so your not soaking filters every week.

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Beware if the filter traps water and is not changed the moisture will go after the powder coating inside the housing and then the aluminum. this requires complete replacement. I have never seen powder coating flake like this.

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I've had a Motor Guard Filter on my air system for, at least, 35 years. I agree with the other review that it's best to put a moisture seperator in front of the Motor Guard. Also, make sure that you put the filters at some distance from the compressor. I live in NJ and we get our share of humidity so I get a lot of water in the air lines. I can't say enough good things about this filter.

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I use this as a bypass filter on my cars. Change with plain restaurant toilet paper every 3000 miles and oil never wears out. Never change the oil. A trucker using a similar device called the gulf coast filter which uses a bounty paper towel roll as a filter went 500,000 miles on the same oil and no engine wear. Just add a little oil when changing that stays in the paper. No the paper does not degrade. I've been using one on my diesel rv for the fuel filter and it's the same roll for 10 years and the few times I run it each year it starts right up.