Koch Filter 13X21FC Fan Coil Air Filter 13.5x21.5x1 in

Product Description

The KOCH FILTER 13X21FC is a replacement air filter designed for fan coil units that require a non-standard filter size. Measuring 13.5 inches by 21.5 inches by 1 inch, this filter maintains proper airflow and filtration performance in fan coil applications. It is typically installed by HVAC technicians servicing residential or light commercial fan coil systems where a custom or specialty filter size is required. The compact 1-inch depth suits tight filter-rack configurations common in fan coil cabinets.

This filter is intended for fan coil unit installations where standard filter sizes do not fit. Fan coil units are common in hotels, multi-family buildings, and light commercial spaces served by chilled water or heat pump systems. The 13.5 x 21.5 x 1 inch nominal size addresses applications where off-the-shelf filter dimensions are not suitable, allowing service technicians to maintain scheduled filter replacement intervals without custom fabrication.

Key Features

• Non-standard 13.5 x 21.5 x 1 inch size engineered for fan coil unit filter racks
• Supports consistent airflow management within fan coil cabinet enclosures
• 1-inch depth fits shallow filter slots typical in fan coil applications
• Designed for accessible field replacement during routine maintenance

Compatibility

Designed as an OEM-style replacement filter for fan coil units requiring a 13.5 x 21.5 x 1 inch non-standard filter size.

Installation Notes

Installation is performed by licensed HVAC technicians during scheduled maintenance of fan coil units. Power down the fan coil unit at the local disconnect or thermostat before replacing the filter. Confirm filter orientation and airflow direction arrow alignment before seating the filter in the rack. Dispose of used filters in accordance with local waste guidelines.

Technical Specifications

• Filter Length: 21.5 inches
• Filter Width: 13.5 inches
• Filter Depth: 1 inch
• Application: Fan Coil Unit

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: 13X21FC