6x20x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack microbes 8 oz Oregonism XL

8 oz Oregonism XL

After extensive research and development

TC Spectrum: This tissue culture spectrum is fine-tuned for rapid cell division

a terrarium or bonsai

Inoculation of All New Roots

6x20x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack microbes 8 oz Oregonism XLNordic 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