21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack Controllers DYNOMYCO contains a blend of

DYNOMYCO contains a blend of strains sourced worldwide

Controls heating or cooling equipment with both day/night set points

The YELLOW side attracts and kills aphids

EZ-CLONE Cloning Collars are available in a new high density Hard material as well as the same great Soft material that we have been using for years

21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack Controllers DYNOMYCO contains a blend ofNordic Pure Trane Replacement 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