8x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_cp Pressure rating of >3

Pressure rating of >3

and with their 2000° Kelvin color temperature they consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used

while the status LED indicates operating mode

HORTILUX Metal Halide provides optimum spectral energy required for vegetative growth

8x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_cp Pressure rating of >3Nordic 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