--- product_id: 179698808 title: "DFR-03 3/8\" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl" brand: "nanpu" price: "HK$1071" currency: HKD in_stock: true reviews_count: 13 category: "Nanpu" url: https://www.desertcart.hk/products/179698808-dfr-03-3-8-npt-air-drying-system-double-air store_origin: HK region: Hong Kong --- # 70 SCFM flow rate @ 90 PSI 3/8" NPT piggyback combo Double 5 micron brass filters DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl **Brand:** nanpu **Price:** HK$1071 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your airflow game with precision and purity — don’t let your tools settle for less! ## Quick Answers - **What is this?** 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?** HK$1071 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/179698808-dfr-03-3-8-npt-air-drying-system-double-air) ## 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 - • **Superior Air Purity:** Dual 5-micron brass filter elements deliver extended life and exceptional contaminant removal. - • **Robust Build & Safety:** Durable polycarbonate bowl with metal guard ensures long-lasting protection and easy monitoring. - • **Effortless Maintenance:** Semi-auto drain system minimizes downtime and keeps your air system running smoothly. - • **Complete Installation Kit:** Includes air coupler, plug kit, fittings, and thread seal tape for seamless setup. - • **Precision Pressure Control:** Lockable regulator knob with clear PSI-centric dial for effortless, accurate adjustments. ## Overview The DFR-03 3/8" NPT Air Drying System combines a piggyback air filter and pressure regulator with dual 5-micron brass filters, delivering up to 70 SCFM flow at 90 PSI. Featuring a semi-auto drain, durable polycarbonate bowl with metal guard, and a lockable, easy-to-read pressure dial, it ensures clean, controlled air for professional-grade performance. Perfect for efficient, low-pressure applications like airbrushing and industrial use. ## Description NANPU DFR-03 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl | Semi-Auto Drain, Poly Bowl: desertcart.com: Industrial & Scientific Review: Excellent - It's a really great tool—my brother has one, so I gave it as a gift to my husband. It works super well; he loves it because he can work much more efficiently with the compressor. 10/10! Review: Great setup - I bought this setup as a secondary regulator and air dryer off my primary on the 30 gallon compressor to use with my airbrushes. It’s great! Small footprint, easy to mount with a couple screws to the end of my workbench and for me the best part of it all is the dial indicator for pressure settings. Most dials are for high pressures and the BAR setting is the primary measurement. This setup is perfect for me because not only is PSI the primary display ( BAR is still there ), but it is centric to low pressures! I use 15,20, 25 up to around 45 but the lower numbers are more frequent. It’s very easy to read and adjust and the knob locks to keep it where you want it! I’d highly recommend this setup for lower pressure usage like airbrushes fir painting or ladies nails or makeup, etc. You won’t be disappointed! ## 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 | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 2,516 Reviews | ## Images ![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) ![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) ![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) ![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) ![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 ### ⭐⭐⭐⭐⭐ Excellent *by J***Z on June 9, 2026* It's a really great tool—my brother has one, so I gave it as a gift to my husband. It works super well; he loves it because he can work much more efficiently with the compressor. 10/10! ### ⭐⭐⭐⭐⭐ Great setup *by C***9 on August 9, 2022* I bought this setup as a secondary regulator and air dryer off my primary on the 30 gallon compressor to use with my airbrushes. It’s great! Small footprint, easy to mount with a couple screws to the end of my workbench and for me the best part of it all is the dial indicator for pressure settings. Most dials are for high pressures and the BAR setting is the primary measurement. This setup is perfect for me because not only is PSI the primary display ( BAR is still there ), but it is centric to low pressures! I use 15,20, 25 up to around 45 but the lower numbers are more frequent. It’s very easy to read and adjust and the knob locks to keep it where you want it! I’d highly recommend this setup for lower pressure usage like airbrushes fir painting or ladies nails or makeup, etc. You won’t be disappointed! ### ⭐⭐⭐⭐ 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.hk/products/179698808-dfr-03-3-8-npt-air-drying-system-double-air](https://www.desertcart.hk/products/179698808-dfr-03-3-8-npt-air-drying-system-double-air) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-29*