17_3/8x35x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack lighting so you'll have 30 days

so you'll have 30 days of protection with each 2-pack

Efficient Airflow – 271 CFM air movement at 680W/7 Amps ensures thorough air circulation throughout the space

and still enough to be useful for larger growers

The PhytoMAX-2 400 uses only the highest-quality

Add Killer Tea for even better results

17_3/8x35x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack lighting so you'll have 30 daysNordic Pure Custom MERV 10 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