Filter King 12.5x21x1 Air Filter | 6-PACK | MERV 13 | HVAC Pleated AC Furnace Filters | MADE IN USA | Actual Size: 12.5 x 21 x .75"

FILTER: This is a MERV 13 rated 6 pack Air Conditioner Filter 12.5" x 21" x 1" - Actual Size: 12.5" x 21" x .75" MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours. FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.