Filter King 18x30x1 Air Filter | 4- | Carbon 8 Pleated / Furnace Filters | | Actual Size: 17.5 x 29.5 x .75"

: This is a Carbon 8 rated 4 pack Air Conditioner Filter | Size: 18" x 30" x 1" - Actual Size: 17.5" x 29.5" x .75" : Our filters can last up to 90 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 / and heaters : 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. & : Open, Slide and Close! simple yet effective replacement air filter for your home.