24 1/2x27x1 Trane ReplacementMERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_fluence It is an excellent natural

It is an excellent natural and organic supplement to other plant foods and soil conditioners

optional cutoff tabs on the bottom corners for drainage

edge® EC/TDS/Salinity utilizes four ring conductivity probe technology that allows the user to measure samples from very low conductivity to very high conductivity

Patented carbon substrate for complete odor and VOC removal

CLOUDRAY Series of Whole House Fans

24 1/2x27x1 Trane ReplacementMERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_fluence It is an excellent naturalNordic Pure 24 1 2x27x1 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: