Simplify your HVAC filter inventory with the Field Controls FlexFilter FLEX‑4—a cleverly engineered media air cleaner that expands to fit both 16″ × 25″ × 4″ and 20″ × 25″ × 4″ filter slots. This two-in-one design eliminates the hassle of tracking down specific OEM filters, offering fast installation, high-performance filtration, and space-saving convenience.
Features:
- Replaces major brands
- Installs in seconds
- MERV 11 media
- Compact
- Easy to store
