Brands › American Standard › XT95 (TUH1/TDH1 -H)
American Standard ADH1D110A9H51B furnace filter size
This furnace takes 2 filters, each 16 x 20 x 1 (downflow top (external, in return duct) or downflow top (external, in return duct)).
Every filter option for this model
| Where return air enters | Filter size (inches) | How many |
|---|---|---|
| downflow top (external, in return duct) | 16 x 20 x 1 | 2 |
| downflow top (external, in return duct) | 16 x 20 x 1 | 2 |
Where the filter goes
Product data: "FILTER - Furnished? Yes", row label "Shipped (No.-Size-Thk.)". Downflow: two filters factory supplied, external in return duct.
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 | 24.5 in. |
|---|---|
| Airflow direction | downflow/horizontal |
| Heat input | 110,000 BTU/hr |
| Efficiency (AFUE) | 95.0% |
| Model number note | trailing revision letter varies Same furnace as Trane TDH1D110A9H51B, per the maker's document. |
| Also sold as | Trane TDH1D110A9H51B |
How to read a American Standard model number
Source
- Trane Product Data XT95 TUH1/TDH1 (-H) Pub. 22-1859-07 (2018) (product data (spec sheet), page 7): document. Read 2026-11-03.
- Installer's Guide 18-CD33D1-11-EN (*UH1/*DH1 -H, XT95) (2019) (installation manual, page 14): 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.