After months of research and videos I decided on the after cooler for the 5-7.5 hp compressors. NOT a transmission coolers. pay attention folks two different functions and operating parameter designs.
The necessary fittings to reduce from 3/4 to 1/2 and the 90* fittings saved me a lot of trips looking for all the parts.
This is one of the better one stop shops for DIY folks needing air compressor parts and help.
Not a welder so am stuck figuring out how to wall mount the after-cooler but at least it will be on hand.
I will be a repeat customer for sure.
EMAX 20 HP 3 Phase 120 Gallon Duplex Tank Silent Air Integral Dryer 208-230V 115 CFM ESP10D120V3PKG-208
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EMAX Silent 20 HP V4 3PH Duplex Compressor & 115 CFM Refrigerated Air Dryer – High-Performance Air System
Upgrade your air system with the EMAX Silent 20 HP Duplex Compressor and 115 CFM Refrigerated Air Dryer, a powerhouse combination designed for industrial efficiency, reliability, and quiet operation. The 20 HP alternating piston compressor features two pressure-lubricated cast iron pumps that cycle between each other to reduce wear and keep up with heavy workloads. If demand spikes, both pumps run simultaneously to maintain pressure. The 120-gallon ASME-certified tank ensures you have ample air storage, while the Whisper100 noise reduction system lowers operating noise by over 35%.
Paired with the EMAX 115 CFM Refrigerated Air Dryer, this system delivers clean, dry air by removing moisture, oil, and dirt, protecting your equipment from corrosion and contamination. Its stainless steel heat exchanger maximizes efficiency, while the aluminum refrigerated inner cooler provides trouble-free operation. This combo is ideal for high-performance applications, ensuring consistent airflow, reduced maintenance, and long-lasting durability.
Features & Specifications:
Compressor Features:
• 20 HP total power (2 x 10 HP motors) for industrial-grade airflow
• 68 CFM @ 100 PSI with a 175 PSI max pressure
• Alternating system reduces wear and optimizes cooling
• Pressure-lubricated cast iron pumps with low oil shut-down for reliability
• Industrial 1750 RPM motors (UL & CSA certified)
• 120-gallon ASME-certified horizontal tank approved for all 50 states
• Built-in inner cooler and after cooler for superior heat dissipation
• Whisper100 noise reduction system reduces noise levels by over 35%
• Automatic tank drain & belt tension adjustor for easy maintenance
• Continuous run mode for high-duty cycle applications
Refrigerated Air Dryer Features:
• 115 CFM air-drying capacity removes moisture, oil, and dirt
• Stainless steel heat exchanger ensures long-lasting performance
• Energy-efficient aluminum refrigerated air cooler for optimal efficiency
• Non-corrosive inner and after cooler for trouble-free operation
• Prevents freeze-up with adjustable hot bypass system
• Compact and efficient design, ideal for 10 HP systems
• Easy installation with 120V single-phase power—no special wiring required
This EMAX Compressor & Air Dryer Combo is the perfect solution for those who demand clean, efficient, and powerful compressed air with minimal maintenance. Whether for auto shops, industrial settings, or manufacturing applications, this system is built to perform.

