PneumaticPlus SAU470-N04DG-MEP 4 Stage Compressed Air Drying System - Particulate Filter, Coalescing Filter, Pressure Regulator & Water Separator, 1/2" NPT - Auto Drain, Metal Bowl for compressor

This is one of several Pneumatic Plus filters I have in my shop. High quality build from South Korea. Three filter stages, which I have feeding a refrigerated air dryer. Most highly recommended.

Works amazingly... Drains at night while our compressor is off... we have never had such clean and dry air and this is in Florida where keeping your lines dry is near impossible even with a good dryer post compressor... Will absolutely be buying more of these to replace all our two stage filter dryers...

Nice assembly paired with a desiccant dryer my air lines are cleaner and drier making my air tools perform better

After paying over $300 and receiving it, I was very disappointed with the water valve. Someone screwed the nut incorrectly. The quality seems to be fine, but I did not test it with my plasma machine due to the issue of the nut that cannot be adjusted.I ordered the part because I needed it and will start looking for other sources for tools. Amazon is failing big time.

This pneumatic air filter/dryer set arrived very quickly, and upon unboxing, seems to be well made. Time will tell as far as performance goes, and I will update this review as needed. Overall, I'm impressed with the look and feel of this product, as it definitely has the feel of quality. However, it was packaged very poorly. The filter/dryer set is totally assembled in the box (with the exception of the pressure gauge). Upon arrival the box did not show any signs of mishandling, but part of the filter/dryer was poking through the side of the box. When I opened the box, I found the main filter/dryer set laying loose in the box, along with a bubble wrap envelope that it had apparently slipped out of. There was no other protective packaging, and the product was moving freely inside the box, which no doubt led to it poking through the side of the box. There does not appear to be any damage to the product itself, which is a testament to its sturdy build. Product seems impressive...packaging is anything but impressive.

I have been using a PneumaticPlus brand air dryer and filter for six years with a mobile plasma cutter and have had great results over the years with the system. The system has been claw-hammer reliable, super easy to adjust, and high quality. If a guy could gush over something that just works, I'd gush over it. This 4-stage system will be used with a plasma cutting table once the table is assembled.