16x21_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack led and calibration information

and calibration information

PRO-MIX BX BIOFUNGICIDE™­ is a general purpose peat-based growing medium enriched with Bacillus subtilis

• Multiple intake/exhaust ports—including two ports opposite each other at reflector level for air-cooling of lighting system on most models

Outdoor Weatheproof

Mamba Trax Black 50’s - Case of 6 Boxes (50 Covers/Box)

16x21_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack led and calibration informationNordic 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