21x27x1 Trane Replacement MERV 10 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords All blocks with holes fit

All blocks with holes fit 1

By reducing surface tension and increasing the leaf surface to active fertilizer or control

Mitigate Stalling - 30% more power than the competition

Minimum Order of 12 cases applies

It is safe for use around people

21x27x1 Trane Replacement MERV 10 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords All blocks with holes fitNordic Pure Trane Replacement MERV 10 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