22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_fluence Enhances plant functions at the

Enhances plant functions at the foliar level and the root zone in both soil and soilless substrates

Use in combination with other Chemboys nutrient solutions to provide an increase in nutrient uptake

All of these EXTRACT

Ensures that the Evolution Reverse Osmosis system runs more efficiently

Our powerful one-part grow and one-part bloom formula can serve as base nutrition or as a supplement

22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_fluence Enhances plant functions at theNordic 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