Field Controls 46600405 FLEX-4 Replacement Filter 16x25 + 20x25 4-Inch MERV 8 (6-Pack)

The Field Controls FLEX-4 Flex Filter provides efficient whole-home air filtration with a flexible accordion-style design that expands to fit your HVAC system. This replacement filter pack includes filters designed to accommodate both 16x25 and 20x25 filter grilles with a 4-inch depth, making it a versatile solution for residential air quality needs.

Key Features:

• MERV 8 filtration efficiency captures dust, pollen, mold spores, and other airborne particles
• 4-inch expandable accordion design maximizes surface area for improved airflow and longer filter life
• Compatible with standard 16x25 and 20x25 filter grilles
• Reinforced construction maintains structural integrity during operation
• Case pack contains 6 filters per master carton for convenient bulk replacement
• Designed for residential HVAC applications including forced air furnaces and air handlers

The FLEX-4 system offers an economical filtration solution with extended service intervals compared to standard 1-inch filters. The flexible media design allows for easy installation and reliable performance in whole-home air cleaning applications.