13x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Controllers Higher part per million for

Higher part per million for your deep cleaning needs

Product Note: Do not apply to sensitive plant species such as poinsettias

The Phantom is also the only ballast on the market designed for vertical or horizontal operation

away from direct sunlight and heat sources

5 hp dust collection system for maximum efficiency

13x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Controllers Higher part per million forNordic 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