8x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting-&-electrical-components Size: 15''x20''

Size: 15''x20''

Enhance trichome development increase yield with the state-of-the-art ILUMINAR Lighting iLogic™8 UV+Far-Red

is the 98 oz size (single jar)

high flow rates and high pressure is needed

8x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting-&-electrical-components Size: 15''x20''Nordic Pure Custom MERV 8 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