17x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack reflectors and grow lights mildly acidic pH and long-term

mildly acidic pH and long-term effectiveness make it a fantastic choice for bedding

The PX1 is designed to work with any Phantom or Hydrofarm ballasts with USB connectivity

Fan Size - 8 Inch

Smooth and quiet operation

17x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack reflectors and grow lights mildly acidic pH and long-termNordic 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