20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Lirium also includes a pre-wired

Lirium also includes a pre-wired 15' cord with a standard ballast plug to work with most popular ballast brands

This product’s specialized media density promotes faster and

but residual pentane is not a major concern as long as the oil is purged thoroughly

Rounding out the features are a built-in condensation tray

ice boxes and ducting dust free

20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Lirium also includes a pre-wiredNordic Pure Custom MERV 12 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