10x22x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack plant-care/pest-&-disease-control This allows your plants to

This allows your plants to achieve a balance between respiration and photosynthesis in high intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis

Dynamically adjusts fan speed based on temperature and humidity conditions to produce optimal airflow

Start seedlings and clones at 20–30% power and gradually increase intensity as plants mature

Adapters can be purchased separately also

From brand to brand they have nothing unique or different to offer

10x22x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack plant-care/pest-&-disease-control This allows your plants toNordic 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