NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
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Availability:
In Stock.
Arrives
Thursday, Aug 21
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Size: 1/4" NPT
Style: 5 μ
Features
- 1/4" NPT Piggyback Air Filters/Regulator Combo
- Double 5 Micron Brass Filter Element, Excellent Filtering Performance, Much Longer Life and Reuse Feasibility
- Max Supply Pressure:145 psi; Operating Pressure: 0-125 psi
- Temperature Range: 41-140F (5-60C);Flow Rate: 18 SCFM (500 L /Minute)@ 90 PSI
- Includes Semi-Auto Drain & Polycarbonate Bowl, 0-150 Gauge & Bracket,a pair of Air Coupler& Plug Kit, 2 x 1/4" NPT Fittings, 1 x Thread Seal Tape
Package Dimensions : 6.65 x 6.34 x 2.52 inches; 1.28 Pounds
Item model number : DFR-02
Date First Available : October 15, 2019
Manufacturer : NANPU
Best Sellers Rank: #9,750 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Compressed Air Combination Filter Regulators
#3 in Compressed Air Combination Filter Regulators:
Customer Reviews: 4.3 4.3 out of 5 stars 2,708 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Aug 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1/4" NPT
Style: 5 μ
Installed this on my little 50 amp plasma cutter and it works great, and I have not had an issue in the one year of operation. Just used on the weekends but I would trust it in a commercial setting.
Reviewed in the United States on July 3, 2025 by Chad wagner
Size: 1/4" NPT
Style: 5 μ
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!
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Reviewed in the United States on October 14, 2022 by RCC
Size: 1/4" NPT
Style: 5 μ
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.
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Reviewed in the United States on October 20, 2020 by Darth Geek
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.
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Reviewed in the United States on June 27, 2025 by Ross M
Size: 1/4" NPT
Style: 0.01 μ, Metal Coupler & Plug
This has been working well, the auto drain is pretty handy and it seems to be drawing out most if not all the moisture in the air.
Reviewed in the United States on August 5, 2025 by Morgan V
Size: 1/4" NPT
Style: 0.01 μ, Metal Coupler & Plug
I really liked this when I first installed it. Now a year later it is leaking substantially, and I will need to find a better product to replace it.
Reviewed in the United States on January 7, 2025 by Noel
Size: 3/8" NPT
Style: 5 μ
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.
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Reviewed in the United States on January 22, 2025 by Prakash
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.
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Reviewed in the United States on June 27, 2024 by Amazon Customer