--- product_id: 179698808 title: "NANPU DFR-03 3/8\" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl" brand: "nanpu" price: "₩161379" currency: KRW in_stock: true reviews_count: 13 category: "Nanpu" url: https://www.desertcart.kr/products/179698808-nanpu-dfr-03-3-8-npt-air-drying-system-double store_origin: KR region: South Korea --- # Flow rate 70 SCFM @ 90 PSI 3/8" NPT piggyback combo Double 5 micron brass filters NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl **Brand:** nanpu **Price:** ₩161379 **Availability:** ✅ In Stock ## Summary > 🛠️ Elevate your airflow game with precision and power — don’t let your system settle for less! ## Quick Answers - **What is this?** NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl by nanpu - **How much does it cost?** ₩161379 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/179698808-nanpu-dfr-03-3-8-npt-air-drying-system-double) ## Best For - nanpu enthusiasts ## Why This Product - Trusted nanpu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Stage Filtration:** Double 5 micron brass filter elements ensure superior air purity and extended filter life. - • **Effortless Maintenance:** Semi-auto drain system simplifies water removal, minimizing downtime and hassle. - • **Robust Build with Safety:** Polycarbonate bowl with metal guard offers durability and clear visual monitoring. - • **Complete Installation Kit:** Includes gauge, bracket, air coupler, plug kit, fittings, and thread seal tape for plug-and-play setup. - • **Precision Pressure Control:** Seamlessly regulate air pressure from 0 to 125 psi for optimized system performance. ## Overview The NANPU DFR-03 is a high-performance 3/8" NPT air drying system combining dual 5 micron brass filters with an air pressure regulator. Designed for industrial and warehouse air systems, it supports a flow rate of 70 SCFM at 90 PSI and operates within 0-125 psi pressure range. Featuring a durable polycarbonate bowl with metal guard and a semi-auto drain, it ensures efficient filtration, pressure control, and easy maintenance. The package includes all necessary fittings and accessories for quick installation. ## Description Product description NANPU 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo 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. Brand Package ＆ Foam Box The original packaging and foam box give the product better protection, prevent any damage that may have occurred during transit. Accessories Air Coupler＆ Plug Kit, Thread Seal Tape and Fittings as additional accessories to bring more convenience to your installation. User's Manual For more details about this product, please refer to the user‘s manual. Installation and Operating Preparation 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. Pressure Adjustment 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. Dial Reading 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 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. TECHNOLOGY CHANEGS LIFE & TECHNOLOGY CHANGED BY NANPU NANPU - Support Your Pneumatic World At NANPU Pneumatic, we believe clean, reliable air power is the foundation of efficient industrial performance. With years of experience and a dedicated engineering team, we specialize in designing and manufacturing air treatment solutions—Air Filters, Regulators, Lubricators, and integrated FRL systems—that help protect your equipment and optimize output. Trusted by professionals across industries, NANPU products are built for precision, durability, and easy integration. Whether you're outfitting a single workstation or an entire production line, we offer tailored solutions to meet your exact air management needs. Empower your pneumatic system with NANPU—Engineered for Clean Air. Built for Performance. Review: Compact unit that performs great - Well made and compact unit. Very pleased with this purchase. Review: Good Air line filter/regulator - 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. ## 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: 41-140℉ (5-60℃）；Flow Rate: 70 SCFM (2000 L /Minute)@ 90 PSI - Max Supply Pressure:145 psi; Operating Pressure: 0-125 psi - Includes Semi-Auto Drain & Polycarbonate Bowl with Metal Guard, 0-150 Gauge & Bracket，a pair of Air Coupler＆ Plug Kit, 2 x 3/8" NPT Fittings, 1 x Thread Seal Tape ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Z5PHJS6 | | Best Sellers Rank | #13,220 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Compressed Air Combination Filter Regulators | | Brand | NANPU | | Brand Name | NANPU | | Customer Reviews | 4.4 out of 5 stars 2,499 Reviews | | Manufacturer | NANPU | | Manufacturer Part Number | DFR-03 | | Material | Aluminum, Brass , Plastic | | Material Type | Aluminum, Brass, Plastic | | Model Number | DFR-03 | | Size | 3/8" NPT | | UPC | 708257243453 | ## Images ![NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Image 1](https://m.media-amazon.com/images/I/81v+zJM4D1L.jpg) ![NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Image 2](https://m.media-amazon.com/images/I/71DHZIvvWaL.jpg) ![NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Image 3](https://m.media-amazon.com/images/I/61nPpo8ufqS.jpg) ![NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Image 4](https://m.media-amazon.com/images/I/81McIbvmLPL.jpg) ![NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Image 5](https://m.media-amazon.com/images/I/81miWigbR2L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Compact unit that performs great *by R***F on March 29, 2026* Well made and compact unit. Very pleased with this purchase. ### ⭐⭐⭐⭐⭐ Good Air line filter/regulator *by B***C on January 28, 2026* 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. ### ⭐⭐⭐⭐ All around a terrific little system *by D***K on October 20, 2020* 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. ## Frequently Bought Together - NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl - Goodyear 3' x 3/8" Rubber Whip Hose Yellow 250 Psi - Milton S-314MKIT ColorFit Coupler & Plug Kit - (M-Style, Red) - 1/4" NPT, (14-Piece) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/179698808-nanpu-dfr-03-3-8-npt-air-drying-system-double](https://www.desertcart.kr/products/179698808-nanpu-dfr-03-3-8-npt-air-drying-system-double) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-31*