12_3/4x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack odor-control Adults are a brown-black color

Adults are a brown-black color

Hydrofarm’s new Designer T5 System delivers performance

Minimal light deterioration for maximum lifespan & intensity

Gorilla Clone Tents create the ultimate environment for your precious starts

12_3/4x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack odor-control Adults are a brown-black colorNordic Pure Custom MERV 7 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