Professional 2-in-1 Air Filter System - 160 PSI Digital Regulator with Water Separator (AI303-R2)

Regular price $30.69
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What buyers say
Verified by Judge.me
★★★★★
Drew MusselmanVerified
Works like it should
Product works like it should. Allows you to easily know what pressure you're at.
★★★★★
Digital FanVerified
Love the digital display
Love the digital display. So much easier to read than analog.
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Return within 30 Days of purchase for full refund.

AI303-R2 digital air filter regulator water separator - front view showing full product design
Professional 2-in-1 Air Filter System - 160 PSI Digital Regulator with Water Separator (AI303-R2)
Regular price $30.69

Product Summary

The Le Lematec AI303-R2 is a 2-in-1 digital air filter system combining a water separator with a digital pressure regulator and gauge. 160 PSI rated with LCD display showing multiple units. 1/4" NPT connections. Price: ~$31. Factory direct from Le Lematec.

Best for: Users who want precise digital pressure control and air filtration in a single compact unit.

Replacement Air Filter Element — Compatible with Le Lematec Regulators

Experience complete air control with the AI303-R2 Professional Air System. This innovative combo unit features a digital pressure gauge and water separator filter with push-button drain. Built with non-corrosive materials and offering precise digital readings from 0-160 PSI, it's the perfect solution for maintaining clean, regulated air in professional applications.

Key Features & Benefits:

  • Digital Precision: LCD display shows PSI, Bar, Kpa readings (±2% accuracy)
  • Clean Air Delivery: Integrated filter removes water, oil, and contaminants
  • Smart Power: Auto ON/OFF feature with replaceable CR2032 battery
  • Quick Maintenance: Push-button drain valve for easy service
  • Professional Range: Controls from 0-160 PSI (0-11 Bar/0-1100 Kpa)
  • Temperature Rated: Operates from 5-60°C
  • Quality Build: Not made in China - engineered for reliability

Technical Specifications:

  • Pressure Range: 0-160 PSI
  • Operating Pressure: 90 PSI optimal
  • Connection: ¼" NPT
  • Power: CR2032 battery
  • Features: Digital display, water separator, drain valve

Essential for spray painting, woodworking, and air tool protection. Experience precise control with clean air delivery - Add to Cart now to upgrade your compressed air system.

Professional Performance Guarantee: Workshop-tested for reliable contamination removal and accurate pressure control.

Frequently Asked Questions

Q: What advantage does the digital display have over an analog gauge?

A: The AI303-R2 digital LCD shows exact PSI values to 0.1 precision, eliminating the guesswork of reading an analog dial. It also displays in multiple units (PSI, BAR, kPa, kg/cm²) simultaneously — essential when following specs from different manufacturers or regions.

Q: Does the AI303-R2 filter and regulate at the same time?

A: Yes, the AI303-R2 is a true 2-in-1 unit combining a 5-micron particulate filter with a precision digital pressure regulator. This eliminates the need for two separate inline devices, saving space and reducing potential leak points in your air system.

Q: How does the AI303-R2 compare to the AI303-R1?

A: Both are 2-in-1 filter-regulators. The AI303-R1 has an analog pressure gauge while the AI303-R2 features a digital LCD display with multi-unit readout. The AI303-R2 offers higher precision for applications where exact pressure matters, such as HVLP spray painting.

Why Professionals Choose This Tool

  • Digital Pressure Display: Precise pressure readout replaces guesswork from analog gauges — set exact PSI for each tool
  • 160 PSI Rating: Highest pressure rating in the Le Lematec filter regulator lineup — handles industrial compressor output
  • Integrated Water Separator: Removes moisture before it reaches the regulator diaphragm — extends regulator life and improves accuracy
  • Premium 2-in-1 Design: Digital regulation + water separation in a single unit saves space and plumbing

What's in the Box

  • AI303-R2 digital filter regulator
  • Digital pressure display
  • Water separator filter element
  • Drain valve
  • 1/4" NPT fittings
  • User manual

Compatible With

Air Compressors Any compressor up to 160 PSI
Air Tools All pneumatic tools — provides filtered, regulated air
Display Digital PSI readout for precise pressure setting

Ideal Applications: precision air regulation, spray booth setup, digital pressure monitoring, high-pressure air treatment, professional shop filtration

Why choose the AI303-R2 over the AI303-R1?

The AI303-R2 adds a digital pressure display for precise readout (vs. analog gauge on the R1) and handles 160 PSI (vs. 140 PSI). Choose the R2 for spray painting and precision applications where exact PSI matters. The R1 is a great value option for general shop use.

Does the digital display need batteries?

Yes, the digital display uses a standard replaceable battery with 12+ months typical life. The display provides ±1 PSI accuracy compared to ±3-5 PSI on analog gauges.

Related Guides & Resources

Shipping Information

  • Most USA-based orders are shipped directly from our warehouses within 24 hours for your convenience and maximum efficiency.
  • Your product should arrive within 3 - 7 Business Days.

Product Return/Refund and Exchange Policies

At Pro Air Tools, we ensure that we are providing the best quality products from the most trusted hand tool brand. Thus, we stand behind all of our products and quality control 100%.

In the event that the products you ordered from us did not meet your expectations, we will gladly offer you our 30 Months Satisfaction Guarantee Request, no questions asked and no restocking fee! 

If within 30 Months from your purchase, you are not fully satisfied with any of the products, you may request any of the following:

  1. Product Replacement
  2. Exchange the product with another product of the same value. 
  3. Refund the amount you paid.  

Proof of purchase from Pro Air Tools is required for all return, refund, and exchange requests. We also require anyone who wishes to return a product, or request a refund, to fill out our Return/Refund Form. We will notify you via email or phone once we process your return/refund request. Refunds will be credited to the original payment method.

With regards to product exchanges, please note that we only accept this type of request if the product delivered to you is defective or damaged. If a customer opts to request a product exchange with “change of mind” as the reason, the product must be returned in its original packaging. The product should not be used or installed in any manner. All return shipping costs will be shouldered by the customer. Return unused product to our office address at 103 Edwin Pl. Asheville, N.C. 28801.

If you have any question regarding our return/refund and exchange policy that was not answered here, feel free to reach out to us via: 

Email at info@proairtools.com

A phone call at  +1 828 398 0334

PO Box 8367
725 MERRIMON AVE
ASHEVILLE, NC 28804-2447

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