21_1/4x21_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack gavita Liquid Ladybug™is the first zero

Liquid Ladybug™is the first zero environmental impact spider mite spray

The Phantom II Digital Ballast features Smart Alert Technology

plant-based

Reinforced to stand up to the forces of nature

) stainless steel tank

21_1/4x21_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack gavita Liquid Ladybug™is the first zeroNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition