21_1/2x23_5/16x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack trays The iLogic™9 is the zero-compromise

The iLogic™9 is the zero-compromise solution for production-focused growers

the meter will automatically accept and store the calibration value

Nitro Nutrients BASE provides the ideal ratios for maximum vegetative and flower growth

and cannabis

21_1/2x23_5/16x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack trays The iLogic™9 is the zero-compromiseNordic Pure Custom MERV 8 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