Overview
The EG&G Rotron 477712 is a filter assembly accessory kit engineered for industrial and electronics cooling applications. This kit fits standard 4.5-inch (4-1/2″) muffin fans and tubeaxial designs, providing reliable dust filtration while maintaining airflow efficiency. The kit is supplied new in original packaging and includes all necessary components for immediate installation.
Key Features
- Fits 4.5-inch muffin and tubeaxial fans
- Washable filter element for extended service life
- Includes aluminum or steel filter frame for durability
- 2 mounting clips for secure installation
- Maintains high airflow efficiency while filtering dust
- Designed for electronic equipment and enclosure cooling
Technical Specifications
Filter Kit Components:
- Filter frame (1 unit)
- Washable filter element (1 unit)
- Mounting clips (2 units)
Fan Size Compatibility: 4.5-inch (4-1/2″) square fans
Condition: New in original box
Typical Applications
The 477712 filter assembly kit is commonly used in:
- Electronics enclosure cooling systems
- Computer and server cooling installations
- Industrial control panel ventilation
- Telecommunications equipment housing
- Laboratory and test equipment cooling
- Any application requiring dust protection for 4.5-inch fans
Compatibility & Replacements
Compatible With
- Rotron muffin fans (4.5-inch models)
- Rotron tubeaxial fans (4.69″ to 4.73″ square)
- EG&G Rotron Whisper series fans
- Standard 4.5-inch square fan mounting frames
- Electronics cooling and enclosure ventilation systems
Replaces / Drop-In Replacement For
The 477712 is the original Rotron filter kit for compatible fan models. Verify your exact fan model with your system integrator before ordering to ensure proper fitment.
Works With
- AC-powered muffin and tubeaxial cooling fans
- Standard DIN rail and wall-mounted fan installations
- OEM electronics enclosures and equipment housings
- Legacy Rotron fan systems from 1980s–2000s era










