16_1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Extension Shipping Weight - 23LBS

Shipping Weight - 23LBS

Increased aeration and more drainage allow gardeners to more aggressively feed without worrying about overwatering

this system also provides unparalleled processing capacity

They feed on and control all stages of phytophagous mites with all mobile life stages of A

16_1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Extension Shipping Weight - 23LBSNordic Pure Custom MERV 12 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