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The 4RS-1 is a universal 4-outlet power expansion module
Drench or mist your plants for an explosion of new root growth
The Autopilot digital CO2 controller can be selected to operate in Fuzzy Logic mode or standard logic CO2 injection within the room
durable and machine washable
bug and pathogen Free
14x22x1 Exact MERV 12 AC Furnace Filters 6 Pack double-ended The 4RS-1 is a universalNordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different
