Experience Superior Filtration with the Inline Air Filter

Protect 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.

Key Features & Benefits:

• Maximum Filtration: 1-micron filter removes 99.9% of contaminants
• Premium Construction: Aluminum body with solid brass fittings
• Easy Maintenance: Quick-action push-button drain valve
• Safety Design: One-way valve prevents tool damage
• Versatile Range: Operates from 2-150 PSI (90 PSI optimal)
• Universal Fit: ¼" NPT male/female connections
• American Quality: Not made in China - engineered for reliability

Technical Specifications:

• Operating Pressure: 2-150 PSI
• Filter Rating: 1 micron
• Construction: Aluminum body, brass fittings
• Connections: ¼" NPT
• Features: Push-button drain, backflow protection

Ideal for spray systems, plasma cutters, and air suspension. Experience professional-grade air quality - Add to Cart now to protect your equipment investment.

Professional Performance Guarantee: Workshop-proven and trusted by automotive professionals.

Optimize Your Compressed Air System

The inline air filter

system 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.

Durability and Reliability

Constructed 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.

Simple Installation and Maintenance

Installation 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.

Frequently Asked Questions

Q: How often should I replace the inline air filter element?

A: 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.

Q: Can I use the AI303 with a plasma cutter?

A: 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.

Q: What's the difference between the AI303, AI303-R1, and AI303-R2?

A: 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.

Related Guides & Resources

• Complete FRL Unit Guide
• Air Compressor Accessories Buying Guide
• Pneumatic Tool Maintenance Guide