9x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack air-purification Total Grow Control's combination sensors

Total Grow Control's combination sensors have been completely modernized with several major upgrades

Oriental Fruit Moth (Grapholitha molesta)

reducing the need for reapplication and maintaining protection in outdoor growing environments

This makes it ideal for applying pesticides

9x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack air-purification Total Grow Control's combination sensorsNordic Pure Custom MERV 7 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