30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Lighting & Electrical Components Keep the container tightly sealed

Keep the container tightly sealed when not in use

and mineral extracts

KALIX All-Purpose 20-20-20 is a tried and tested soluble all-purpose formulation with chelated micronutrients

Your Grodan Starter plugs

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30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Lighting & Electrical Components Keep the container tightly sealedNordic 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