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Active Eye Color-Correcting LED Grow Room Lenses Color correction plus eye protection
Use to encourage growth of seedlings and cuttings and to stimulate rapid growth through the vegetative growth stage
If you want to reap a large bountiful harvest your plants must receive the correct ratio of Calcium to Magnesium throughout its life cycle
No chemical mixing and no expensive generator technology required
20x20_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Active Eye Color-Correcting LED GrowNordic Pure Custom MERV 14 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
