13x21_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Emitters This Mendocino line provides highly

This Mendocino line provides highly efficient

Big Rootz Bloom is pH-adjusted and enriched with mycorrhizae to maximize root growth

canopy penetration and yields

Compared to single ended lamps

Lettuce Drop (Sclerotinia sp)

13x21_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Emitters This Mendocino line provides highlyNordic Pure Custom MERV 14 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