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Power Regulating Circuits ensure all the chips and boards are receiving the same voltage to produce a consistent intensity and maintain the spectral quality
This economical covering helps growers maintain better heat distribution to help regulate their plants
Whitefly and other plant leaf and soil insect parasites
The 8-16 mm uneven pebbles provide stability and the unique uneven shape is an ideal surface for roots and beneficial bacteria
21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack DUCTWORK Power Regulating Circuits ensure allNordic Pure Custom MERV 13 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
