17_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Misc This system also allows you

This system also allows you to continue growing your plants after they root

this preserves precious trichomes as well as ensuring the bud is finished when it exits the tumbler

lamp failure protection

macro and micro minerals

*Use with any other Biobizz products or Try-Packs to maximize crops and minimize costs

17_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Misc This system also allows youNordic 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