12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack flowering Ventilation holes on sides &

Ventilation holes on sides & bottom

Reflectors can be daisy chained using one fan as long as each reflector gets a minimum airflow of 250 CFM

Nordic Pure 10x10x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Rhizoctonia

With robust features including a Power Frame capable of withstanding up to 25 tons of force

12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack flowering Ventilation holes on sides &Nordic Pure Custom MERV 13 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