21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hgc • High lumens per watt

• High lumens per watt output

consistent grind with minimal powder

A built-in backflow preventer helps avoid oil contamination in case of an unexpected shutdown

Persimmons

Includes: Trimbag

21x27x1 Trane Replacement MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hgc • High lumens per wattNordic Pure Trane Replacement 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