17_1/4x17_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Trimmers Btk only affects the larval

Btk only affects the larval (caterpillar) stage of the the Lepidoptera order of insects

5 x 1 (inch)

Intense Light

Grow rooms

It is a fully customizable modular designed system

17_1/4x17_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Trimmers Btk only affects the larvalNordic 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