21x27x1 Trane Replacement MERV 13 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits 50 & 80 pints per

50 & 80 pints per day at 86°F 80% RH

The mats heat compressed to ensure compactness and consistent finish

Results are seen within hours

highest par/lumen output (986umol@18")

These active ingredients are listed as food grade materials

21x27x1 Trane Replacement MERV 13 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits 50 & 80 pints perNordic Pure Trane Replacement MERV 13 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