Trane FLRQB5FR21M11 Quilk Box Filter | PartsHnC

The Trane FLRQB5FR21M11 QuikBox filter (2‑pack, 20.2 × 26 × 4.7 in, MERV 11) is a high-performance expandable media air filter for Trane QuikBox and TFM cabinet-style HVAC systems. Shipped flat, the filter “pops up” into a rigid pleated structure during installation. With a MERV 11 rating, it effectively removes dust, pollen, pet dander, and other airborne particles while maintaining low pressure drop . Compatible with gas furnaces and air handlers, this filter enhances indoor air quality, extends equipment lifespan, and improves system efficiency—reducing maintenance frequency and energy costs.

For an efficient and reliable HVAC system, the Trane Quilk Box Filter is a great choice for optimal system performance.

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