10x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Travel Bags & Backpacks - Light spectrum towards the

- Light spectrum towards the blue

The iL1c is the slim LED that packs a punch without hurting your energy meter

or black fly

Cycle timer is programmable down to 1 second

10x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Travel Bags & Backpacks - Light spectrum towards theNordic Pure Custom MERV 7 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