17_1/4x29_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack trays • Organic soil systems: Mix

• Organic soil systems: Mix 5-8 ml per gallon water

Capable of accurately counting your cash at lightning-fast speeds

Available in 80% red or 90% red

fixing atmospheric nitrogen

17_1/4x29_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack trays • Organic soil systems: MixNordic 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