Yes, the Carrier 4" media filters are an odd size: 19 1/8 x 19 13/16 x 4 5/16.
The OEM part numbers are:
FILXXFNC0021 for MERV 8
FILXXFNC0121 for MERV 11
They can be mail ordered for about $30. The good news is they will typically last a year.
Here is one source:
Bryant & Carrier Filter Cartridge for FILBBFNC, FILCCFNC Series Fan Coil - Filters America
Quote:
Originally Posted by Dr Winston O Boogie jr
All of the new houses have a Carrier air handler that takes a special filter that is only available at Ace Hardware.
The Filter is 19X20X4 but a standard 19x20x4 won't fit and if you use a standard filter of that size, your warranty will be voided.
I was told by a salesman at Ace that they were given notice to stock up on these filters.
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