14x16x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Led • Four way output control

• Four way output control 60%

Easy to clean because of its bullet shaped glass bulb

Some cultivars and growing conditions may require higher doses of Calcium

UL1598 and IP66 wet-rated for use in wet environments

14x16x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Led • Four way output controlNordic 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