17x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack king shredder and quiet mixed flow impeller

and quiet mixed flow impeller

and prevents your nutrients from falling out of solution

The 200 gm desiccant packs are environmentally safe and can be disposed of as normal waste

60 watts /

and does not damage the buds

17x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack king shredder and quiet mixed flow impellerNordic 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