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and #8 Perlite (3/4"-1 1/3" granules)
Mix BotryStop WP with water according to label rate
higher intensity and more even coverage in a Mars Hydro grow tent
Weight: 12 lbs
15x17x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack botanicare and #8 Perlite (3/4"-1 1/3"Nordic Pure Custom MERV 10 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