17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack plant-care/pest-&-disease-control Aeration promotes air pruning for

Aeration promotes air pruning for better fruit and higher yields

INCLUDED ITEMS:

Pargro is the leader among affordable horticultural rockwool

5 lbs 46⅝” x 3¼” x 2” 2 lbs 12

17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack plant-care/pest-&-disease-control Aeration promotes air pruning forNordic Pure Custom MERV 12 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