20x23x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Sungrower Trellis Netting 1000’ and Shorter Provide protection for more pests

Provide protection for more pests at lower temperatures than S

mildew and bacteria feeding off the plant

8 gram weight 55% thicker than other bags for superior storage

Humic and Fulvic acids in Top·Max™

20x23x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Sungrower Trellis Netting 1000’ and Shorter Provide protection for more pestsNordic Pure Custom MERV 14 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