--- product_id: 40029363 title: "Air Compressor Water Separator, 1/4\" NPT Inline Filter" brand: "le lematec" price: "€ 51.23" currency: EUR in_stock: true category: "Le Lematec" url: https://www.desertcart.hr/products/40029363-air-compressor-water-separator-1-4-npt-inline-filter store_origin: HR region: Croatia --- # 99% moisture removal efficiency 1/4" NPT universal inline fit durable aluminum & brass build Air Compressor Water Separator, 1/4" NPT Inline Filter **Brand:** le lematec **Price:** € 51.23 **Availability:** ✅ In Stock ## Summary > 💨 Keep your airflow flawless and your tools unstoppable! ## Quick Answers - **What is this?** Air Compressor Water Separator, 1/4" NPT Inline Filter by le lematec - **How much does it cost?** € 51.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/40029363-air-compressor-water-separator-1-4-npt-inline-filter) ## Best For - le lematec enthusiasts ## Why This Product - Trusted le lematec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Inline Fit:** Seamlessly integrates with standard 1/4" NPT hoses, couplers, and fittings for instant setup. - • **Push-Button Drain Valve:** Effortlessly purge trapped contaminants without disassembly, keeping your air supply peak-ready. - • **Ultimate Moisture Defense:** Eliminate condensation, oil, and dirt before they damage your tools or paint jobs. - • **Rugged & Reliable Construction:** Heavy-duty aluminum housing and brass fittings built to withstand industrial and garage environments. - • **Flawless Paint & Airbrush Finishes:** Guarantee pristine, spot-free automotive and hobbyist finishes with dry, clean airflow. ## Overview The LE LEMATEC Air Compressor Water Separator (model AI303) is a compact, high-efficiency inline filter designed to remove moisture, oil, and dirt from compressed air lines. Featuring a universal 1/4" NPT fit, rugged aluminum and brass construction, and a convenient push-button drain valve, it ensures dry, clean air for superior paint finishes and tool longevity in professional and industrial settings. ## Description Buy LE LEMATEC Air Compressor Water Separator, 1/4" NPT Inline Filter | Moisture trap, paint gun & plasma cutter ready, auto-draining pneumatic dryer, model AI303: Separators - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Ultimate Moisture Defense: Acts as a high-efficiency air water separator for air compressor lines, removing condensation, oil, and dirt before they reach your equipment. This compressor water separator prevents water spots in paint jobs and rust in expensive pneumatic tools. - Flawless Paint & Airbrush Finishes: Essential paint gun filter that attaches directly to spray guns and airbrushes. By trapping moisture at the source, this air water separator ensures a clean, dry airflow for professional-grade automotive and hobbyist finishing without defects. - Universal Inline Fit: Designed with standard 1/4-inch NPT inlet and outlet, this air line water separator fits most air hoses, couplers, and fittings. It installs instantly as a water separator for air compressor setups, sandblasters, and plasma cutters. - Rugged & Reliable Construction: Unlike plastic alternatives, this unit features a heavy-duty aluminum housing and brass fittings. It serves as a durable air water separator for air compressor systems in high-impact garage and industrial workshop environments. - Push-Button Drain Valve: Features a convenient push-button drain for fast maintenance. Quickly release trapped contaminants from the water separator without disassembling the line, ensuring your air supply remains dry and your tools operate at peak performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N4FMOMU | | Best Sellers Rank | #49,231 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #114 in Air-Compressor Accessories | | Brand | LE LEMATEC | | Brand Name | LE LEMATEC | | Compatible Devices | air compressor air filter, air water separator for air compressor, compressor air dyer, compressor air filter, inline air dryer Compatible Devices air compressor air filter, air water separator for air compressor, compressor air dyer, compressor air filter, inline air dryer See more | | Customer Reviews | 4.4 out of 5 stars 1,733 Reviews | | Filter Mounting Type | Screw In | | Global Trade Identification Number | 00850030726711 | | Item Dimensions L x W x Thickness | 1.57"L x 1.57"W x 3.62"Th | | Item Highlight | Moisture trap, paint gun & plasma cutter ready, auto-draining pneumatic dryer, model AI303 | | Item Weight | 5.6 ounces | | Manufacturer | LE LEMATEC | | Manufacturer Part Number | AI-303 | | Material | Aluminum, Stainless Steel | | Material Type | Aluminum, Stainless Steel | | Model Number | AI303 | | Number of Items | 1 | | Number of Packs | 1 | | Product Dimensions | 1.57"L x 1.57"W x 3.62"Th | | Product Grade | Like New | | Unit Count | 1 Count | ## Product Details - **Brand:** LE LEMATEC - **Filter Mounting Type:** Screw In - **Global Trade Identification Number:** 00850030726711 - **Item Weight:** 5.6 ounces - **Manufacturer:** LE LEMATEC - **Material:** Aluminum, Stainless Steel - **Number of Items:** 1 - **Number of Packs:** 1 - **Product Dimensions:** 1.57"L x 1.57"W x 3.62"Th ## Images ![Air Compressor Water Separator, 1/4" NPT Inline Filter - Image 1](https://m.media-amazon.com/images/I/71nJ7HzhsHL.jpg) ![Air Compressor Water Separator, 1/4" NPT Inline Filter - Image 2](https://m.media-amazon.com/images/I/71auE1xpACL.jpg) ![Air Compressor Water Separator, 1/4" NPT Inline Filter - Image 3](https://m.media-amazon.com/images/I/71Z+uTad+wL.jpg) ![Air Compressor Water Separator, 1/4" NPT Inline Filter - Image 4](https://m.media-amazon.com/images/I/71zZf-sOanL.jpg) ![Air Compressor Water Separator, 1/4" NPT Inline Filter - Image 5](https://m.media-amazon.com/images/I/71L0EobpckL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What's the difference between the AI303 and the ZN312?** A: AI303 is a gravity separator removing bulk liquid and oil via centrifugal force. The ZN312 is a 1-micron filter capturing fine mist/moisture. For best air quality, install AI303 first (Stage 1) and ZN312 second (Stage 2). **Q: Will this cause pressure drop in my air line?** A: No. The AI303 features an optimized flow path engineered to maintain full downstream pressure. Unlike cheap restrictive filters, it uses centrifugal separation that works WITH the air flow. Your tools will perform at their maximum pressure. **Q: How often do I need to drain the bowl?** A: Drain frequency depends on humidity. Check the transparent bowl and push the drain valve when water reaches the 1/3 mark (takes 2 seconds). In hot, humid conditions, drain every 30-60 minutes. Standard 1/4" NPT connections install in minutes. **Q: Why aluminum instead of plastic?** A: Aluminum offers 3 advantages: (1) Thread integrity to prevent stripping, cross-threading, and air leaks. (2) Corrosion resistance against separated moisture. (3) Structural strength to handle pressure surges without cracking. Built to last. **Q: Is the AI303 compatible with my tools?** A: Yes. With standard 1/4" NPT connections (female inlet, male outlet), the AI303 is compatible with virtually all home and professional compressors and tools, including HVLP guns, airbrushes, and impact wrenches. Operating range: 5-150 PSI. ## Frequently Bought Together - LE LEMATEC Air Compressor Water Separator, 1/4 NPT Inline Filter & Moisture Trap for Pneumatic Tools, HVLP Spray Paint Gun & Airbrush, Durable Compressed Air Dryer with Easy Drain Valve, AI303 - LE LEMATEC Portable Sandblaster Gun Kit, Air Compressor Sand Blaster, Paint & Rust Remover, Abrasive Media & Soda Blaster for Metal, Wood, Automotive & DIY Surface Prep, AS118-2C - LE LEMATEC Air Dryer for Compressor, Inline Moisture Filter for HVLP Spray Paint Gun, Plasma Cutter & Other Pneumatic Tools, Easy Drain Oil & Water Separator (ZN312) --- ## 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.hr/products/40029363-air-compressor-water-separator-1-4-npt-inline-filter](https://www.desertcart.hr/products/40029363-air-compressor-water-separator-1-4-npt-inline-filter) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-20*