Description
BT8-2009 — Sy-Klone FEFF208 MERV 16 / F9 Fresh Air Filter (Standard Length)
The BT8-2009 (Sy-Klone FEFF208) is a RadialSHIELD® MERV 16 / F9 Fresh Air Filter designed for use in RESPA®-CF and RESPA®-CF2 cab pressurization systems. It removes dust, soot, and other airborne contaminants before they reach your cab’s HVAC intake — protecting both operators and equipment.
Engineered for extreme environments, the FEFF208 uses Sy-Klone’s proven RadialSHIELD® technology and ejective endcap design to eject debris back into the environment, extending filter life and maintaining consistent airflow. Built to handle the vibration, dust, and moisture of heavy-duty equipment operation, this filter helps keep cabins cleaner and safer while reducing HVAC maintenance.
Key Features
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MERV 16 / F9 filtration (99.9% efficient at 0.3 μm) — captures fine dust, soot, and biological particles.
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RadialSHIELD® media resists moisture and tearing, ensuring stable performance in harsh job sites.
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Ejective endcap design self-cleans by expelling larger particles, extending filter service life.
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Standard-length model for easy replacement in RESPA-CF and RESPA-CF2 systems.
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Durable polymer endcaps and bonded pleats for maximum vibration resistance.
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Tool-free installation — drops directly into existing RESPA housings.
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Complies with ISO 5011 and EN 779 filtration standards.
Technical Specifications
| Attribute | Specification |
|---|---|
| Manufacturer | Sy-Klone International |
| BTRAC Part No. | BT8-2009 |
| OEM Reference | FEFF208 |
| Filtration Rating | MERV 16 / F9 |
| Efficiency | ≥ 99.9 % @ 0.3 μm |
| Compatible Systems | RESPA-CF and RESPA-CF2 fresh-air systems |
| Filter Type | RadialSHIELD® fresh-air filter with ejective endcap |
| Overall Length | Standard (approx. 8.2 in / 208 mm) |
| Outer Diameter | 4.0 in / 102 mm |
| Inner Diameter | 2.4 in / 61 mm |
| Operating Temp Range | –40 °C to +85 °C |
| Material Construction | Non-woven synthetic media with polymer endcaps |
| Recommended Replacement Interval | Every 500–1000 hours or as needed |
| Compliance | ISO 5011, EN 779 F9 standard |
| Cross References | FEFF108, FEFF008 (previous models) |
Applications
Ideal for use in construction, mining, forestry, agriculture, and waste-handling equipment. Fits any machine equipped with a RESPA-CF or RESPA-CF2 system, including:
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Dozers, wheel loaders, excavators, and graders
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Material handlers and mining haul trucks
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Skid steers, forestry harvesters, and scrapers
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Industrial sweepers and landfill machines
By improving cab air quality and reducing particulate contamination, the FEFF208 helps protect operators’ health, extend HVAC system life, and maintain clear visibility in dusty environments.
Interchange / Cross-Reference Numbers
FEFF208, FEFF108, FEFF008, BT8-2009, Sy-Klone RadialSHIELD®, RESPA CF, RESPA CF2.







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