21_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack smoking-accessories the Grow1 LED Worklight is

the Grow1 LED Worklight is a perfect lighting solution for viewing your plants at night

Strong UV peaks for increased resin production

This premium blend was formulated for the discerning Grower

and our long-lasting wetting agent

21_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack smoking-accessories the Grow1 LED Worklight isNordic 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