17_3/8x35x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Emitters including those that cause root

including those that cause root rot

Thermal Management - Passive

01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis

Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow

Designed for high performance Potted & container plants

17_3/8x35x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Emitters including those that cause rootNordic 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