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NANPU 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl

  • Based on 117 reviews
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Availability: In Stock.
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Arrives Tuesday, Sep 29
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Size: 3/8" NPT


Style: 5 μ, Metal Coupler & Plug


Features

  • 3/8" NPT Piggyback Air Filter/Regulator Combo
  • Double 5 Micron Brass Filter Element, Excellent Filtering Performance, Much Longer Life and Reuse Feasibility
  • Temperature Range: 41-140F (5-60C);Flow Rate: 70 SCFM (2000 L /Minute)@ 90 PSI
  • Max Supply Pressure:145 psi; Operating Pressure: 0-145 psi
  • Includes Semi-Auto Drain & Polycarbonate Bowl with Metal Guard, 0-150 Gauge & Bracket,a pair of Metal Air Coupler& Plug Kit, 2 x 3/8" NPT Fittings, 1 x Thread Seal Tape

Description

Double air filters is designed to remove most liquid and solid particles from the air supply,more cleaner than ordinary single filter. The Self-Relieving Pressure Regulator is used to adjust the outlet pressure. The original packaging and foam box give the product better protection, prevent any damage that may have occurred during transit. Air Coupler& Plug Kit, Thread Seal Tape and Fittings as additional accessories to bring more convenience to your installation. For more details about this product, please refer to the user‘s manual. Filters/Regulator Brand Package & Foam Box Accessories User's Manual The assembly of all calibration shall meet the maximum flow requirement. Please clean the port and fitting before installation, it will effectively avoid bring dust to the air path. Pay attention to direction of air flow and arrow pointing on product body if correct, minding port and thread size if match. Pull up the knob of pressure gauge, rotate: If you do clockwise rotation, pressure will rise steadily.Pressure will down when you rotate counterclockwise. Stop turning after reaching the required index and lock down the knob,forget this step you may face leakage problem. Make sure that the pressure gauge is tightly installed on the main body, and pay attention to whether the reading rises and falls smoothly while adjusting pressure. Drainage column will automatic excrete if there is no pressure,and it will close during the air flow passing. When the water level is beyond upper limit, drainage is necessary, otherwise that will cause poor dehumidification. Notice: Please use a wrench to tighten fittings to avoid leakage. The first installation may have an excretion reaction ( Not leakage, for the first time the internal pressure is different from the outside, it is necessary to discharge the excess air first ) In this case, please patiently wait for a while and it will work well. After more than 30 years of development, NANPU Pneumatic has a professional air power system design and production team to provide customers with high quality and services. Since clean air is indispensable part in many fields of industry for all kinds of equipment and tools, NANPU F.R.L (Air Filter, Air Regulator, Air Lubricator and their combinations) can make your air supply safer and more efficient. We provide customized products and services for your various needs.

Package Dimensions: ‎8.62 x 7.95 x 3.31 inches


Item Weight: ‎2.75 pounds


Manufacturer: ‎NANPU


Date First Available: ‎November 16, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Works as advertised and easy to mount
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
We use these as a moisture trap and regulator between our compressor and airbrush set up. Mounted it to the roll cart we have our airbrush setup on. Everything connected just fine without leaking right out of the box. The regulator and gauge work as they are supposed to. For the price the setup is hard to beat. ... show more
Reviewed in the United States on October 29, 2023 by Slow66

  • Nice kit
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
Great kit, came with everything I needed, but no directions…
Reviewed in the United States on May 21, 2026 by C Ryan

  • Works pretty good
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
I have not put it through the test yet but I got it in hopes of when I start painting that it will take 90% of the moisture 95% of the moisture out of the line and I will use another inline filter as well but we'll see I don't like the way it was put together kind of with the screws they kind of loosen up a little bit so it would be best to be put on a wall or something solid behind it that's my take but other than that it's all right ... show more
Reviewed in the United States on July 27, 2024 by Edward Root

  • Seems to be working as intended
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
My compressor often operates in relatively high humidity when I have to run it with the outside doors open and I frequently have issues with moisture in the lines. This seems to have done the trick and has done a fairly good job of keeping my lines clear when spraying. I went a bit overboard and put two of these in place, one at the compressor and the other downstream near the connector that my sprayer hose attaches. It's probably not needed for 96% of the times I'm using air but just wanted a little added coverage when I'm operating in extremely high humidity conditions. ... show more
Reviewed in the United States on June 27, 2025 by Ross M

  • Horrible design
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
The design is really bad. There's a little button at the bottom of these that you press to eliminate water from the system. They have a little spring and o-ring seal on them so that they stay air tight when the air is running through. The air pressure going in is supposed to seal it. Within 2 days of installation that area started leaking. The filters seem to catch debris which is good, except for the fact that the debris makes the o-rings not seat properly which lead to air leaks. I decided I just wouldn't push the button unless the catch was full of water so I cleaned and greased the catch cup and o-ring thinking it would stop the issue. Again, it worked fine for a day. The next day it was leaking again. This company needs to re-design the water drain function because it makes the whole setup useless. If you do buy, I would recommend NEVER pressing that button and allowing debris to get under the o-ring. ... show more
Reviewed in the United States on June 27, 2024 by Amazon Customer

  • As expected
Size: 3/8" NPT Style: 5 μ, Metal Coupler & Plug
Used it once so far to use spray gun for undercoating. Came as expected and no issues with contaminants or water. Came with all the fittings i needed!
Reviewed in the United States on October 14, 2025 by Mike

  • Recieved broken.
Size: 3/8" NPT Style: 5 μ, Metal Coupler & Plug
Recieved broken, the 2 drain valves where broke off. Ordered another one quick! But it is what I needed.
Reviewed in the United States on November 5, 2025 by gary walker

  • Appears to be working as it should
Size: 1/4" NPT Style: 5 μ, Metal Coupler & Plug
Appears to be working as it should. Water is collecting in both bowls. Water that would have been entering my tools. Seems to be built solidly. Time will tell, but so far I am happy with this unit.
Reviewed in the United States on January 23, 2024 by M. Jones

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