11_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Terp Derp with stiff nylon bevel-cut bristles

with stiff nylon bevel-cut bristles remove dirt

Sweet Grape also provides aroma and flavor amending bioactive esters that enhance flowers fragrance and produces taste

– Easy cleanup post-harvest (remove entire root zone and used media in one swoop)

Also available in 8" model

the Plasma Air 50 Series Industrial Ionizer delivers a proven

11_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Terp Derp with stiff nylon bevel-cut bristlesNordic Pure Custom MERV 13 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