16_1/4x21_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack PPE Use Verde in conjunction with

Use Verde in conjunction with Humboldt Nutrients base nutrients and additives for vigorous growth

Unlike many fungicides

Keeps dried herbs and food fresh

Isolate plants that are being treated from other female plants you do not wish to produce seeds

quick to fill

16_1/4x21_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack PPE Use Verde in conjunction withNordic Pure Custom MERV 8 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