1/4" Digital Air filter with regulator AI303-R2

Function
  1. Removes water vapor, dirt, dust, and oil vapor from air inlines.
  2. With Drain Valve.
  3. Impact-resistant housing.
  4. Optimal for spray painting, plasma...etc.
  5. 1/4" inlet and outlet.
  6. LCD
  7. Solvent resistance based on average usage.
  8. Made in Taiwan.

AI303-R2 Industrial 3-in-1 Digital Air Management System

Integrated Filter | Precision Regulator | LCD Digital Gauge

A Strategic All-in-One Solution Manufactured in Taiwan for High-Purity Compressed Air Control

3-in-1 LogicFilter + Regulator + Gauge
Digital LCDPinpoint Pressure Clarity
Impact ShieldReinforced Industrial Body
Taiwan MadeGlobal Precision Quality
In professional spray painting, plasma cutting, and high-precision pneumatics, the lack of pressure stability and the presence of moisture are the primary causes of rework. The LEMATEC AI303-R2 is a strategic consolidation of three critical components into a single 1/4" modular unit. By providing real-time digital feedback and integrated moisture trapping, it ensures a 100% clean air path while significantly reducing the footprint of the air system.
AI303-R2 Primary View
B2B Core Performance Advantages
Digital Display Detail

Advanced Fluid Integrity

The internal filtration system is engineered to remove water vapor, dirt, dust, and oil vapor instantly. Combined with a dedicated Drain Valve, technicians can purge accumulated contaminants in seconds, maintaining peak tool efficiency throughout the work shift.

Comparison Swivel Connector

Ergonomic System Integration

Designed for seamless integration into existing air lines. For technicians requiring high mobility, the upgrade to the AI303-R2A Swivel Edition provides 360-degree rotation, eliminating hose tangles and maximizing operator comfort during complex spraying or cutting maneuvers.

Your Strategic Manufacturing Partner in Taiwan

Since 1988, LEMATEC has provided global tool brands with precision pneumatic solutions. We offer robust OEM/ODM services tailored to build your market authority.

📦 OEM/ODM Customization Custom housing colors, laser-engraved logos, and private labeling tailored for global distributors.
🔧 Media & Technical Support Provision of professional photography, technical video assets, and detailed datasheets for your marketing channels.
📉 Flexible Procurement Support for pilot sample orders and small quantity shipments to help you test market demand with zero risk.
Industrial Application Matrix
🎨 Spray Painting Eliminates fisheyes and craters by ensuring 100% moisture-free air delivery.
🔥 Plasma Cutting Protects expensive consumables from moisture damage and ensures clean arc stability.
🏭 Industrial Machinery Maintains consistent torque for air tools and protects internal pneumatic logic.
🛠️ MRO Maintenance An essential portable diagnostic and control tool for facility maintenance teams.
Detail 1 Detail 2
Technical Procurement Summary
LCD Interface Detail
Model NumberAI303-R2 / R2A (Swivel)
Drive Size1/4" NPT / PT Universal
Filter TypeIntegrated Moisture & Oil Trap
Gauge TypeDigital LCD Pressure Gauge
Housing BuildImpact-Resistant Polymer
Drain MechanismManual Push-Button Drain Valve
ManufacturingMade in Taiwan (Certified QC)
Chemical ResistanceStandard Solvent Resistance
Profile View Inlet View
Vic Chen - General Manager of LEMATEC

Strategic Wholesale Inquiry

Vic Chen, General Manager at LEMATEC, leads our engineering and global supply chain teams in Taiwan. We specialize in providing global distributors with modular high-performance tools and reliable OEM/ODM support. Contact us for bulk pricing, technical consultation, or partnership opportunities.

© 2026 LEMATEC. All rights reserved. Precision Air Path Management from Taiwan to the World.

Professional Grade

Digital Air Filter with Regulator

Model: AI303-R2 / Air Management Series

AI303-R2 Digital Filter Regulator View
AI303-R2 is a high-precision 3-in-1 solution: Air Filter + Pressure Regulator + Digital Gauge. Optimized for high-throughput paint finishing and critical pneumatic operations.
Technical Specifications
Model NumberAI303-R2 / AI303-R2A
Inlet & Outlet Size1/4" NPT (Universal Fit)
Pressure Range0 – 160 PSI (±1% Accuracy)
Measurement UnitsPSI, BAR, KPA (Switchable)
Power SourceCR2032 Battery (Replaceable)
Housing BuildImpact & Solvent Resistant Polymer
ManufacturingMade in Taiwan
Core Features
  • Trapped Waste Management: Integrated release valve for rapid ejection of moisture and oil contaminants.
  • Digital Monitoring: High-contrast LCD for error-free real-time pressure tracking.
  • Energy Management: Auto-off functionality for extended battery life.
  • Screw-Free Maintenance: Modular chassis design allows for tool-less battery replacement.
Engineering Diagram & Dimensions
AI303-R2 Engineering Blueprint
© 2026 LEMATEC. All rights reserved. Professional Air Path Integrity from Taiwan.

How to use our air filter with digital air regulator gauge and why choose it?