8x28x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack complete-systems Premium 95% European aluminum

Premium 95% European aluminum

An Xtrasun convertible ballast means extra flexibility for your gardening

Contains Non Plant Food Ingredient Silica (derived from Bamboo Extract)

FloraFlexTM Long Plunge T Drippers are used with the Drip Shield or as a stand-alone dripper

14% drier than competitor blocks

8x28x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack complete-systems Premium 95% European aluminumNordic Pure Custom MERV 7 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