13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Hydro Systems B-Lite 315W CMH 4000K High

B-Lite 315W CMH 4000K High CRI

Input Power: 330W

It can be used with pots ranging from 7

for consistent monitoring and continued control

13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Hydro Systems B-Lite 315W CMH 4000K HighNordic 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