21_1/4x23_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer Ionic Bloom for Soil contains

Ionic Bloom for Soil contains the highest quality minerals and is powerfully enriched with naturally occurring plant acids that increase overall nutrient uptake and enhance growth and yields of virtually every plant

With the free TrolMaster App

and attached handles which can velcro together

NPK / 1 - 4 - 3

21_1/4x23_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer Ionic Bloom for Soil containsNordic 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