21x23_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Plant Care/Pest & Disease Control Ensures superior performance in extremes

Ensures superior performance in extremes of weather

Pseudomonas sp

Weight: 27

Wear suitable gloves

This prevents the fruit fly from exiting the DiveJar

21x23_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Plant Care/Pest & Disease Control Ensures superior performance in extremesNordic Pure Custom MERV 7 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