16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments The Ceramic HPS can take

The Ceramic HPS can take up to 20 minutes to get to full power

black lady bird beetles

Each Nordic Pure 4” MERV 7 air filter captures airborne particles as small as 3

the 120° beam angle is optimized for near-canopy placement

16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments The Ceramic HPS can takeNordic 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