--- product_id: 479753781 title: "3/8\" NPT Auto-Drain Air Filter Regulator Lubricator Combo (FRL) Water/Oil Trap Separator - Gauge(0-150 psi), 5 Micron Brass Element, Poly Bowl, Metal Bracket" brand: "nanpu" price: "$150.47" currency: USD in_stock: true reviews_count: 5 url: https://www.desertcart.us/products/479753781-3-8-npt-auto-drain-air-filter-regulator-lubricator-combo store_origin: US region: United States of America --- # 0-150 PSI gauge for precise pressure control 3/8" NPT Auto-Drain for seamless air flow 5 Micron Brass Filter Element for superior filtration 3/8" NPT Auto-Drain Air Filter Regulator Lubricator Combo (FRL) Water/Oil Trap Separator - Gauge(0-150 psi), 5 Micron Brass Element, Poly Bowl, Metal Bracket **Brand:** nanpu **Price:** $150.47 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your air system game—filter, regulate, lubricate, and dominate! ## Quick Answers - **What is this?** 3/8" NPT Auto-Drain Air Filter Regulator Lubricator Combo (FRL) Water/Oil Trap Separator - Gauge(0-150 psi), 5 Micron Brass Element, Poly Bowl, Metal Bracket by nanpu - **How much does it cost?** $150.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/479753781-3-8-npt-auto-drain-air-filter-regulator-lubricator-combo) ## 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 - • **Precision Pressure Control:** Adjust and lock your air pressure between 0-150 PSI with a clear, easy-to-read gauge for optimal performance. - • **Effortless Auto-Drain System:** Keeps your air lines dry and maintenance-free with automatic water excretion—no manual hassle. - • **Durable 5 Micron Brass Filter:** Experience long-lasting, high-efficiency filtration that protects your tools and extends their lifespan. - • **Complete Installation Kit Included:** Comes with air couplers, plugs, fittings, and thread seal tape—everything you need to get started fast and flawless. - • **Robust Build with Polycarbonate Bowl & Metal Guard:** Combines industrial strength with visibility to monitor contaminants without interrupting workflow. ## Overview The NANPU 3/8" NPT Auto-Drain Air Filter Regulator Lubricator Combo is a professional-grade FRL unit designed for precise air pressure regulation (0-150 PSI) and superior filtration with a 5 micron brass element. Featuring an automatic water drain system, a durable polycarbonate bowl with metal guard, and a comprehensive installation kit, it ensures optimal air quality and tool longevity for demanding industrial and workshop environments. ## Description Installation and Operating: 1. Please cleaning the port and fitting before installing, avoiding bringing dirty thing to the air path.2. Pay attention to direction of air flow and arrow pointing on body if match, minding port and tooth type if correct.3. Adjustment of pressure: Pull up the knob of adjustment of pressure up, clockwise rotation, pressure is rising. Anticlockwise rotation, pressure is down. Watch the air gauge and point range and adjust the required pressure, then press the button to the lock status.4. Water bowl excretion. When it is no air pressure, water bowl will automatic excrete. When it has air pressure, the drainage column will rise. Water bowl excreted, releasing the drainage column after drainage finished, then drainage column will automatic rebound, drainage ended. When the water level is beyond upper limit, please drainage. Otherwise that will cause poor dehumidification.5. Adjustable oil: Clockwise rotated needle valve, oil dropped will reduce. Anticlockwise rotated needle valve, oil dropped will increase. After adjusted air flow and set needle valve, air flow and oil dropped will increase, air flow and oil dropped will reduce.6. Refueling method: You can open air path then refueling oil. Anticlockwise rotates refueling screw, refueling capacity does not exceed 85% of bowl. After refueling, please lock refueling screw. Notice: Please be careful to use a wrench to tighten the fitting. 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 wait for a while. Review: The instructions suck but the customer support has been great. So far the initial is working just as it should. It was easy to install. Review: Excelente calidad ## Features - 3/8" NPT Auto-Drain Piggyback Filter Regulator Lubricator Unit - Operating Pressure: 0-145 PSI - 5 Micron Brass Filter Element, Excellent Filtering Performance, Much Longer Life and Reuse Feasibility - Flow Rate: 60 SCFM (1700 L /Minute)@ 90 psi - Includes 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 | B08B5RTVFN | | ASIN | B08B5RTVFN | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #182,234 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #662 in Air Compressor Accessories | | Customer Reviews | 4.2 4.2 out of 5 stars (85) | | Customer reviews | 4.2 4.2 out of 5 stars (85) | | Date First Available | 28 April 2021 | | Date First Available | 28 April 2021 | | Item Weight | 1.03 Kilograms | | Item model number | AC3010-03D | | Item model number | AC3010-03D | | Manufacturer | NANPU | | Manufacturer | NANPU | | Material | Aluminum | | Package Dimensions | 26.39 x 14.4 x 8.89 cm; 1.03 kg | | Package Dimensions | 26.39 x 14.4 x 8.89 cm; 1.03 kg | | Part number | AC3010-03D | | Size | 3/8“ NPT Auto Drain | | Style | Auto Drain | ## Images ![3/8" NPT Auto-Drain Air Filter Regulator Lubricator Combo (FRL) Water/Oil Trap Separator - Gauge(0-150 psi), 5 Micron Brass Element, Poly Bowl, Metal Bracket - Image 1](https://m.media-amazon.com/images/I/81VGzji9R2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***R on 25 September 2025* The instructions suck but the customer support has been great. So far the initial is working just as it should. It was easy to install. ### ⭐⭐⭐⭐⭐ Review *by A***Z on 15 September 2025* Excelente calidad ### ⭐⭐⭐⭐⭐ Review *by A***R on 8 September 2025* Easy install...works well. ## Frequently Bought Together - NANPU 3/8" NPT Auto-Drain Air Filter Regulator Lubricator Combo (FRL) Water/Oil Trap Separator - Gauge(0-150 psi), 5 Micron Brass Element, Poly Bowl, Metal Bracket - InoKraft D1 LVLP Air Spray Gun Premium Kit, Easy to Use, Paint Gun for Cars & House DIY Painting, 1.3/1.5/1.7mm Nozzles, with Paint Sprayer Accessories --- ## 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.us/products/479753781-3-8-npt-auto-drain-air-filter-regulator-lubricator-combo](https://www.desertcart.us/products/479753781-3-8-npt-auto-drain-air-filter-regulator-lubricator-combo) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-26*