16_1/2x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Myco Madness can help in

Myco Madness can help in forming an essential link between the plant roots

rock dust and kelp for exceptional quality castings

This 50 lb kit — two 25 lb drums — contains Paenibacillus popilliae

this results in 40% greater trichome preservation than the competition

Rounded rectangle shape for better stacking and packing

16_1/2x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Myco Madness can help inNordic 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