9x13x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack fluorescent-lighting natural convection thermal management (no

natural convection thermal management (no fans or moving components)

Meets National Organic Production (NOP) standards

tube can be shortened for various applications

It is the ONLY proven and tested air disinfection system that eliminates airborne contaminants according to USP 800 standards

Amend ECOMAX prior to transplant to reduce the use of Nitrogen-based fertilizers in Veg

9x13x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack fluorescent-lighting natural convection thermal management (noNordic 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