Koch 20x20x2 MERV 11 Multi-Cell Furnace Filter – 5 Filters

Description

This 20″ × 20″ × 2″ Koch Multi-Cell CS rigid extended-surface filter (part number 110-502-002) delivers MERV 11 filtration in a standard configuration.

Why rigid filters matter for commercial HVAC

Rigid construction is essential for variable air volume (VAV) systems and any air handler where airflow isn’t constant. Non-rigid filters can balloon or collapse as airflow changes, creating bypass paths and defeating the filtration. Rigid filters hold their shape across the full VAV airflow range — Koch Multi-Cell is engineered specifically for this service.

Design and construction

• Construction: Standard commercial-grade rigid construction for general HVAC use.
• Media: Extended-surface pleated synthetic or microfiberglass (MERV-dependent), supported by rigid internal separators.
• Header: Available in single, double, or no-header configurations.
• Certification: UL 900 listed.

What MERV 11 captures

Fine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.

Typical applications

Commercial office VAV systems, schools, hospitals, retail, and industrial HVAC. Typical service as final filter behind a MERV 8 pleated pre-filter in multi-stage commercial air handlers.

Need help matching header style or size?

Rigid commercial filters come in many configurations. If you’re replacing an existing filter, send us your current part number or spec and we’ll confirm the exact match.

Spec sheet

Download Koch Multi-Cell CS spec sheet (PDF)

Also worth considering

Shopping on price? Our house brand PrimeShield Advanced (MERV 11) covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.

Questions on fit, quantity, or a commercial quote?

Need a size that isn’t listed, a different pack count, or a quote for a commercial order? Get in touch — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.

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