10x12x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Pest and Disease Control 90 watts /

90 watts /

californicus lasts between one to two weeks and is significantly influenced by temperature

noise is reduced to levels that were previously thought to be unattainable

Mix: 1/2 oz/gal of water for flowering plants and 1 oz/gal for veg

10x12x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Pest and Disease Control 90 watts /Nordic 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