NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl

Well made and compact unit. Very pleased with this purchase.

Works as intended. No leaks, easy to drain, no problems with the gauge or regulator Using this to futher filter and step down the pressure on our warehouse air system, from 135psi to 60psi. Mounted to the side of a ballast tank. Plumbed with 3/8" 800PSI Pneumatic tubing. Perfect for my need.

I was really impressed with this unit. All the fittings I needed were included, plumber's tape (though it is really thin), and it came mostly assembled. The way they designed this makes each module interchangeable. I actually removed the module with the pressure gauge to do a pressure test, everything worked perfect without the filters attached. The included instructions are very brief and not translated well. Fortunately everything is marked with arrows for flow on the top of each module and the regulator has indications of how to lock as well increase/decrease pressure. The two reasons I marked this as 4 stars rather than 5: the filter drain valve assemblies and small air leaks. *For my small airbrush compressor, the drain valves do not close by themselves. I have to manually hold them shut in order for the filters to build pressure to hold them closed. Its a little annoying but still functional. *I'm also have issues with the fittings and modules holding pressure (compressor discharge is 57psi rated, gauge shows approximately that). With the supplied plumber's tape and the supplied fittings, I cannot hold pressure. I have a slow leak that short cycles my compressor. All the fittings are tightened except the pressure gauge which is very difficult to get a wrench on due to the small clearance between the gauge and the body. I have hand tightened it as far as I can. Recommendations to the manufacturer: *I would recommend either including a thin wrench that allows you to tighten the pressure gauge or install the gauge at the factory. *I would upgrade the plumber's tape to something a bit more robust. If it leaks at 60psi, I can imagine what others are experiencing. *Change the spring in the drain valves so low pressure/flow compressors can close the valves without manual interaction.

I am very pleased with this set up. I really like that it comes in several inlet/outlet sizes and volumes. Make sure you choose the correct size and volume for your application. It seems to be a good quality product for the money and I used it to replace a simpler Craftsman one that I had originally installed on my airlines. the tank on my Craftsman failed so I thought I would try this set up instead. It has a nice mounting design, comes with all the necessary fittings and even some Teflon tape. Time will tell, but for now I am thrilled and I will probably add several to my shop airlines where I work.

I actually installed two of these items in my shop. They really work well to eliminate water in the compressor air lines! I would definitely recommend to buyers looking for a quality Air Drying System. Product UPDATE I’m EXTREMELY DISAPPOINTED WITH MY PURCHASE OF TWO OF THESE DEVISES. My initial review was very positive, a huge MISTAKE. After less than 2 months of use, both units LEAK AIR AT THE FILTER BOWLS, the GAUGES BOTH LEAK AIR, the Very FRAGILE BOWL AIR RELEASE VALVES LEAK, and Neither Devise helps to remove water or condensation from my shop pneumatic system. These are just another piece of foreign JUNK. Cheaply made with cheap plastic parts, BUYER BEWARE, these devises are not worth your $ investment, and constant air component air leaks causing my compressor to run on very frequent cycles. JUNK WITH A HIGH PRICE. Don’t waste your hard earned $$ with this company’s JUNK PRODUCTS . Spend a little more, and get a better quality devise. A TOTAL WASTE OF MY MONEY!

works as it should. only bad thing is you have to drain the pressure to drain the water would be nice if they have a valve or something to open and close.

Just like many people who purchased this product, it worked great for a short period. Now I have a leak between the bowl and housing. It may not be fair but im giving 3 stars. i suspect many issues are caused by over pressurizing the bowl. My compressor is capable of 175psi and i have no regulator before the bowls only after. I suspect many people are over pressurizing these components, but thats just a guess. ill order another filter and install another regulator to protect the filters and see if that works. Really just poor planning and design by me.

Very nice product for the price works great when spraying bed liner

Très bonne qualité à très bon prix

I bought this to improve the operation of a small sandblasting cabinet. As you can see in the pictures it is able to remove moisture from the supply air which was the main purpose of my purchase. The main body is metal and reasonable quality. I didn’t use the plastic airline fittings as they don’t appear to be very durable and installed regular metal fittings. Overall it works fine and was reasonably priced. Not a heavy duty unit by any means but serves its intended purpose and made my sandblaster work much better with the dried air.

I have had this setup in use for my 18 cfm @ 90 psi air compressor for just under two years and it has worked flawlessly. Recommended.

Item arrived and iwas hopeful... itvleaked because whoever assembled this cut the o-rings, so it leaked. Luckily I have o-rings so that was a semi fast repair.... it required 4 new o-rings. The nipples supplied were very cheap, cup drains were assembled backwards so it leaked out the bowls. Had to remove the bowls and assemble the valves correctly... all in all it's a shoddy item from China... I should have known it was too good to be true... now I'm wondering when the next weakness will pop up.... I wouldn't recommend this item unless you have real mechanical skills to repair the new item you purchased. Pretty disappointed to be honest.

Well made, no leaks, compact