21x22x1 MERV 8 AC Furnace Filters 6 Pack MH 5" Cloning Rack Tray by

5" Cloning Rack Tray by Microclone fits into standard chrome and steel racks chosen by growers for their efficient use of space and light

1pc each per HCS-3

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it is particularly effective when used in conjunction with Roots Organics Uprising Bloom for a plant's flowering phase and Roots Organics Uprising Foundation as a supplement

21x22x1 MERV 8 AC Furnace Filters 6 Pack MH 5" Cloning Rack Tray byNordic Pure MERV 8 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 and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters