Carrier 58MVP080-20 furnace filter size
This furnace takes a 16 x 25 x 1 filter (side return) or a 20 x 25 x 1 filter (bottom return), depending on where the return air comes in.
Every filter option for this model
| Where return air enters | Filter size (inches) | How many |
|---|---|---|
| side | 16 x 25 x 1 | 1 |
| bottom | 20 x 25 x 1 | 1 |
Where the filter goes
Inside furnace blower compartment. SI p19: 'Factory supplied washable filters are shipped in the blower compartment.'
The maker ships a filter with this furnace.
How often to change it
General guidance, not from the maker's table: 1-inch filters every 1 to 3 months; 4- and 5-inch filters every 6 to 12 months. Change sooner with pets, smoking or construction dust.
About this model
| Cabinet width | 21 in. |
|---|---|
| Airflow direction | 4-way multipoise (upflow/downflow/horizontal), direct vent, variable-capacity |
| Heat input | 80,000 BTU/hr |
| Model number note | Docs list unit size as 040-14 etc.; nameplate adds series characters (Series 180). 040-14 uses wider 24-1/2 casing (PD dims note: 'wider casing for the 96.6% AFUE furnace'). |
How to read a Carrier model number
Source
- Carrier 58MVP-14SI Installation, Start-up, Operating and Service and Maintenance Instructions (installation manual, page 19): document. Read 2026-11-03.
- 58MVP Product Data (58MVP-11PD), Performance/physical data table (product data / spec sheet, page 8): document. Read 2026-11-03.
Check that the model number on your furnace label matches, and compare with the size printed on your old filter. If they differ, go by the filter that fits your rack.