15x17x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal urea and seaweed intended for

urea and seaweed intended for use on food crops

Extensive thermal modeling and testing was conducted to ensure diodes remain well below operating temperature to maintain consistent light output and yields for over a decade

If plants are touching

This increases capacity

15x17x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal urea and seaweed intended forNordic Pure Custom MERV 12 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