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Product Summary
The Le Lematec ZN312E-3 (3/8" version) is a high-flow desiccant air dryer rated at 150 PSI and 22 CFM. 3/8" NPT connections for larger air lines. Uses replaceable desiccant beads with visual color-change saturation indicator. Price: ~$18. Factory direct from Le Lematec.
Best for: Shops with 3/8" air lines needing high-flow moisture removal for spray painting and sandblasting.
Transform your air tool performance with the Professional ZN312E-3 Air Compressor Dryer. This industrial-grade 3/8" desiccant filter delivers exceptionally clean, dry air at 22 CFM capacity, making it perfect for automotive painting, pneumatic tools, and professional applications.
Designed for reliability and efficiency, this air dryer features a high-performance filtration system that effectively removes moisture, oil, and contaminants without restricting airflow. The robust metal housing and precision-engineered connections ensure leak-free operation at pressures up to 150 PSI, while the smart color-changing indicator helps you monitor filter condition at a glance.
Whether you're a professional automotive technician, industrial user, or serious DIY enthusiast, this air dryer provides the clean, dry air essential for achieving professional-quality results and protecting your valuable tools from moisture damage.
Key Features and Benefits
Technical Specifications:
Package Includes:
Q: Why choose the 3/8-inch version over the 1/4-inch model?
A: The 3/8-inch ZN312E-3 handles higher airflow with less pressure drop, making it ideal for tools requiring 8+ CFM like impact wrenches and large spray guns. The larger port size reduces restriction — critical for maintaining tool performance on high-demand equipment.
Q: Can I regenerate the desiccant beads?
A: Many desiccant types can be regenerated by spreading the beads on a baking sheet and heating at 250°F (120°C) for 2-3 hours until they return to their original color. Silica gel and indicating desiccant typically support 5-10 regeneration cycles before replacement.
Q: How do I know when the desiccant needs replacing?
A: The color-indicating desiccant beads change color as they absorb moisture — typically from blue/orange to pink/clear. Check the transparent viewing window regularly. When more than 50% of the beads have changed color, it is time to regenerate or replace them.
| Air Compressors | Any compressor up to 150 PSI, 22 CFM max flow rate |
| Air Lines | 3/8" NPT air piping — larger than standard 1/4" for higher flow |
| Applications | Spray painting, powder coating, plasma cutting, CNC machines, dental/medical air |
Ideal Applications: spray painting air prep, powder coating, plasma cutting, CNC air supply, dental air, moisture-critical applications
Cartridge life depends on humidity, air usage, and whether you have an upstream water separator. In moderate humidity with a water separator installed upstream, expect 3-6 months. In high humidity without a pre-filter, replacement may be needed monthly. The color indicator makes monitoring easy.
The 3/8" model (ZN312E-3) handles 22 CFM — enough for multiple tools or high-demand equipment. The 1/4" model is suited for single-tool or light-duty use. Choose based on your air line size and total CFM demand.
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:
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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