12_1/2x23_1/2x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting monitor or controller

monitor or controller

The kit includes a 1''

Air Pressure: Max 25 mm WG (2500 Pa or 10" WG)

Granulated rockwool can be used alone or as an amendment to organic based mixes

The ONA Storm

12_1/2x23_1/2x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting monitor or controllerNordic Pure Custom MERV 8 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