{"product_id":"professional-inline-air-filter-system-150-psi-aluminum-oil-water-separator-with-drain-ai303","title":"Professional Inline Air Filter System - 150 PSI Aluminum Oil \u0026 Water Separator with Drain (AI303)","description":"\u003cdiv class=\"product-summary-tldr\" style=\"margin-bottom:20px;padding:16px;background:#f0fdf4;border-left:4px solid #16a34a;border-radius:0 8px 8px 0;\"\u003e\n\u003cp style=\"margin:0 0 8px 0;font-weight:600;color:#15803d;\"\u003eProduct Summary\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px 0;\"\u003eThe Le Lematec AI303 is a 150 PSI inline air filter that removes oil, water, and dirt from compressed air. Aluminum construction with auto-drain and visual inspection bowl. 1\/4\" NPT connections. Price: ~$17. Factory direct from Le Lematec.\u003c\/p\u003e\n\u003cp style=\"margin:0;font-style:italic;color:#166534;\"\u003eBest for: Protecting air tools and spray guns from moisture damage. Essential for any compressed air system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eExperience Superior Filtration with the Inline Air Filter\u003c\/h2\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003eProtect your air tools with the AI303 Professional Inline Filter System. This premium separator combines a 1-micron reusable filter, one-way safety valve, and push-button drain in a durable aluminum body with brass fittings. Designed for workshops demanding clean, dry air and reliable contamination removal across a 2-150 PSI range.\u003c\/p\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"-mt-1 [li\u0026gt;\u0026amp;]:mt-2 list-disc space-y-2 pl-8\"\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eMaximum Filtration:\u003c\/strong\u003e 1-micron filter removes 99.9% of contaminants\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Aluminum body with solid brass fittings\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eEasy Maintenance:\u003c\/strong\u003e Quick-action push-button drain valve\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eSafety Design:\u003c\/strong\u003e One-way valve prevents tool damage\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eVersatile Range:\u003c\/strong\u003e Operates from 2-150 PSI (90 PSI optimal)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e ¼\" NPT male\/female connections\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eAmerican Quality:\u003c\/strong\u003e Not made in China - engineered for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"-mt-1 [li\u0026gt;\u0026amp;]:mt-2 list-disc space-y-2 pl-8\"\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eOperating Pressure: 2-150 PSI\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eFilter Rating: 1 micron\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eConstruction: Aluminum body, brass fittings\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eConnections: ¼\" NPT\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eFeatures: Push-button drain, backflow protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003eIdeal for spray systems, plasma cutters, and air suspension. Experience professional-grade air quality - Add to Cart now to protect your equipment investment.\u003c\/p\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003e\u003cstrong\u003eProfessional Performance Guarantee:\u003c\/strong\u003e Workshop-proven and trusted by automotive professionals.\u003c\/p\u003e\n\u003ch3\u003eOptimize Your Compressed Air System\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einline air filter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003esystem is essential for maintaining clean and dry compressed air. Using advanced filtering technology, it traps harmful contaminants such as moisture and oil, ensuring your equipment operates efficiently. As a result, your air tools and machinery function better, which leads to increased productivity. This filter is perfect for various industries, including automotive repair and woodworking.\u003c\/p\u003e\n\u003ch3\u003eDurability and Reliability\u003c\/h3\u003e\n\u003cp\u003eConstructed from high-quality aluminum, this inline air filter is designed to withstand pressures up to 150 PSI. Its robust build ensures long-lasting performance, even in demanding environments. Plus, with a built-in drain, you can easily remove accumulated moisture without interrupting your workflow. Consequently, you spend less time maintaining your equipment and more time focusing on your projects.\u003c\/p\u003e\n\u003ch3\u003eSimple Installation and Maintenance\u003c\/h3\u003e\n\u003cp\u003eInstallation of this air filter is straightforward, making it accessible for users of all skill levels. Just connect it to your existing system, and you're ready to go! Moreover, maintenance is a breeze—regularly check the filter and drain it as needed to keep your air supply clean. This simplicity not only saves you time but also ensures your air compressor system remains free from potential issues caused by contaminants.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the inline air filter element?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The AI303 uses a reusable 1-micron filter element. Clean it every 200-300 hours of use by rinsing with warm soapy water and allowing it to fully dry. Replace only when the filter shows visible damage or reduced airflow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the AI303 with a plasma cutter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the AI303 is excellent for plasma cutting applications. Its 1-micron filtration removes moisture and oil that can contaminate the plasma arc, resulting in cleaner cuts and longer consumable life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between the AI303, AI303-R1, and AI303-R2?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The AI303 is a standalone filter\/separator. The AI303-R1 adds an integrated pressure regulator with analog gauge. The AI303-R2 adds a digital pressure regulator with LCD display. Choose based on whether you need filtration only or filtration plus pressure control.\u003c\/p\u003e\n\n\u003cdiv class=\"enhanced-features\" style=\"margin-top:20px;\"\u003e\n\u003ch3 style=\"color:#0f172a;font-size:1.1em;\"\u003eWhy Professionals Choose This Tool\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;\"\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\n\u003cstrong\u003eTriple Filtration:\u003c\/strong\u003e Removes water, oil, and dirt particles in a single pass — comprehensive air cleaning\u003c\/li\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\n\u003cstrong\u003eAluminum Body:\u003c\/strong\u003e Lightweight corrosion-resistant construction for long service life\u003c\/li\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e Small footprint for installation in tight spaces or portable setups\u003c\/li\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\n\u003cstrong\u003eManual Drain:\u003c\/strong\u003e Quick-twist drain valve for fast water removal between jobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"whats-in-box\" style=\"margin-top:25px;padding:18px;background:#fefce8;border:1px solid #eab308;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin-top:0;color:#a16207;font-size:1.1em;\"\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eAI303 inline air filter\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eFilter element\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eManual drain valve\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e1\/4\" NPT fittings\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eMounting bracket\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatible-with\" style=\"margin-top:20px;padding:18px;background:#eff6ff;border:1px solid #3b82f6;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin-top:0;color:#1d4ed8;font-size:1.1em;\"\u003eCompatible With\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir Compressors\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eAny compressor up to 150 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir Lines\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eStandard 1\/4\" NPT air hose systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir Tools\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eAll pneumatic tools, spray guns, sanders, impact wrenches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"use-cases\" style=\"margin-top:15px;padding:12px;background:#f0fdf4;border-radius:8px;\"\u003e\u003cp style=\"margin:0;font-size:0.95em;\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e general air filtration, portable shop use, moisture and oil removal, tool protection, point-of-use filtering\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"extra-faqs\" style=\"margin-top:20px;\"\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:15px;\"\u003e\n\u003ch4 style=\"margin-bottom:5px;color:#1e293b;\"\u003eHow often should I replace the filter element?\u003c\/h4\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eUnder normal use, replace the filter element every 6-12 months or when you notice reduced airflow. In dusty or high-humidity environments, check monthly. A dirty filter restricts airflow and reduces tool performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:15px;\"\u003e\n\u003ch4 style=\"margin-bottom:5px;color:#1e293b;\"\u003eCan I install multiple filters in series?\u003c\/h4\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eYes. Professional setups often use a water separator first (AI303), then a desiccant dryer (ZN312-D) for maximum air quality. Each stage removes different contaminants for progressively cleaner air.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:15px;\"\u003e\n\u003ch4 style=\"margin-bottom:5px;color:#1e293b;\"\u003eHow does this air compressor separator filter work?\u003c\/h4\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eThe AI303 separator filter uses a centrifugal separation process combined with a 5-micron filter element. Compressed air enters and spins through the chamber, separating heavier oil and water droplets from the air stream. The remaining particles are caught by the filter element. Clean, dry air exits to your tools while contaminants collect in the drain bowl below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How often should I replace the inline air filter element?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The AI303 uses a reusable 1-micron filter element. Clean it every 200-300 hours of use by rinsing with warm soapy water and allowing it to fully dry. Replace only when the filter shows visible damage or reduced airflow.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use the AI303 with a plasma cutter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the AI303 is excellent for plasma cutting applications. Its 1-micron filtration removes moisture and oil that can contaminate the plasma arc, resulting in cleaner cuts and longer consumable life.\"}}, {\"@type\": \"Question\", \"name\": \"What's the difference between the AI303, AI303-R1, and AI303-R2?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The AI303 is a standalone filter\/separator. The AI303-R1 adds an integrated pressure regulator with analog gauge. The AI303-R2 adds a digital pressure regulator with LCD display. Choose based on whether you need filtration only or filtration plus pressure control.\"}}, {\"@type\": \"Question\", \"name\": \"How often should I replace the filter element?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Under normal use, replace the filter element every 6-12 months or when you notice reduced airflow. In dusty or high-humidity environments, check monthly. A dirty filter restricts airflow and reduces tool performance.\"}}, {\"@type\": \"Question\", \"name\": \"Can I install multiple filters in series?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Professional setups often use a water separator first (AI303), then a desiccant dryer (ZN312-D) for maximum air quality. Each stage removes different contaminants for progressively cleaner air.\"}}, {\"@type\": \"Question\", \"name\": \"How does this air compressor separator filter work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The AI303 separator filter uses a centrifugal separation process combined with a 5-micron filter element. Compressed air enters and spins through the chamber, separating heavier oil and water droplets from the air stream. The remaining particles are caught by the filter element. Clean, dry air exits to your tools while contaminants collect in the drain bowl below.\"}}]}\n\u003c\/script\u003e\n\u003ch3\u003eRelated Guides \u0026amp; Resources\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/frl-filter-regulator-lubricator-guide\"\u003eComplete FRL Unit Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/air-compressor-accessories-buying-guide\"\u003eAir Compressor Accessories Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/pneumatic-tool-maintenance-care-guide\"\u003ePneumatic Tool Maintenance Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"related-products-links\" style=\"margin-top:20px;padding:15px;background:#f8f9fa;border-radius:8px;\"\u003e\n\u003ch3\u003eRelated Categories\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\u003ca href=\"\/collections\/filters\" style=\"color:#2563eb;text-decoration:none;\"\u003e→ Air Filters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\u003ca href=\"\/collections\/regulators\" style=\"color:#2563eb;text-decoration:none;\"\u003e→ Air Regulators\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom:8px;\"\u003e\u003ca href=\"\/collections\/air-tools\" style=\"color:#2563eb;text-decoration:none;\"\u003e→ All Air Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pro Air Tools","offers":[{"title":"Default Title","offer_id":48652065046785,"sku":"A7-4RWO-0S6I","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/8920\/4481\/files\/le-lematec-ai303-air-compressor-water-separator-inline-filter-hero_webp.jpg?v=1776896929","url":"https:\/\/amindustrialauto.com\/products\/professional-inline-air-filter-system-150-psi-aluminum-oil-water-separator-with-drain-ai303","provider":"AM Industrial Auto Parts and Tools LLC","version":"1.0","type":"link"}