Johnson Controls A-4400-608 Filter Element

The Johnson Controls A-4400-608 is a professional-grade particle filter element specifically engineered for high-demand pneumatic environments. Designed as a direct replacement component for the A-4400 series refrigerated air dryer, this element excels at removing particulate contaminants from compressed air streams to prevent downstream instrument fouling. It is critical to note that this specific air dryer filter is configured for units featuring a date code after 9923. By maintaining a clean air supply, the A-4400-608 protects the integrity of pneumatic control systems, ensuring that sensitive valving and actuators remain free of debris that causes calibration drift.

As a veteran-preferred HVACR replacement part, this 0.25-inch particulate element integrates seamlessly into the automatic condensate drain trap assembly. Regular replacement of the Johnson Controls filter element is a standard best practice for contractors to maintain the nominal dew point and prevent system freeze-ups during low-load operations. For technicians servicing A-4000 series equipment, using the correct pneumatic air filter ensures the longevity of the hermetically sealed compressor and heat exchanger by mitigating internal sludge buildup.

• Precision Equipment Protection: Effectively captures particulates that lead to pneumatic instrument failure and control errors.
• Engineered Compatibility: Purpose-built for A-4400 air dryers with date codes 9923 and later to ensure a leak-free, high-pressure fit.
• System Efficiency: Minimizes pressure drops across the filtration stage, maintaining optimal scfm flow during continuous operations.
• Simplified Maintenance: Designed for rapid field replacement within the internally mounted drain trap, reducing service call duration.

How do I verify if this filter fits my specific Johnson Controls air dryer?
Check the unit's nameplate for a date code subsequent to 9923. This A-4400-608 is the standard particulate element for newer A-4400 series models.

Can this element be used as a substitute for a coalescing oil filter?
No. This is a dedicated particulate filter element. For oil and vapor removal, you must utilize the specific coalescing or activated carbon kits designed for the air purification system.

What are the symptoms of a clogged A-4400-608 filter?
Technicians typically observe increased pressure drops, moisture bypass into downstream lines, or erratic performance of the automatic condensate drain trap.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.