Air Bear 16x25x5 (4 7/8) Replacement 266649-105 MERV 15 Air Filters 2 Pack 9 CFM The DTU APP works with

The DTU APP works with both the new APP versions of Nanolux ballasts using a RTU APP and the other window version NCCS ballasts wich require the RTU C-1

R410A refrigerant

low sugar Brix readings and low oil content in the finished product

It measures up to 10

Air Bear 16x25x5 (4 7/8) Replacement 266649-105 MERV 15 Air Filters 2 Pack 9 CFM The DTU APP works withImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3 8 and 5 1 4 inch depth filters,