12_1/2x23_1/2x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies at the time a Ph

at the time a Ph

Diamond Black can also be utilized as an additive for making compost

Dual layer thickness

Filter Washable: MERV 8

and environmental pros who need data they can trust in the field

12_1/2x23_1/2x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies at the time a PhNordic 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