13_1/4x13_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Synthetic Pro Edition Spray distance (horizontal)²: 25 -

Spray distance (horizontal)²: 25 - 25 metres (65

UL approved

WORKS ONLY WITH MAGNETIC BALLAST

Use on its own or with the help of ONA fans

Sturdy covering that double insulates your ducting against heat

13_1/4x13_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Synthetic Pro Edition Spray distance (horizontal)²: 25 -Nordic 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