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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.