| Roof Curb (8”) | 547830A |
| Roof Curb (14”) | 547831A |
| Roof Curb (18”) | 547850A |
| Roof Curb (24”) | 547851A |
| Supply/return transition, 16” | 547834 |
| Supply/return transition, 18” | 547835 |
| Concentric diffuser, flush, 18” | 547837 |
| Concentric diffuser, step down 16” | 547838 |
| Concentric diffuser, step down 18” | 547839 |
| Manual Fresh Air Damper | 547832 |
| Motorized Fresh Air Damper | 547840 |
| Economizer, Downflow, Modulating w/filter (does not require filter kit) CA, title 24, 2 – 3 Ton | 562533 |
| Economizer, Downflow, Modulating w/filter (does not require filter kit) CA, title 24, 3.5 – 5 Ton | 563209 |
| Economizer, Horizontal, Modulating, CA, title 24, 2 – 5 Ton | 562534 |
| CO2 Sensor Kit, Wall Mount | 1011411 |
| CO2 Sensor Kit, Duct Mount | 1011410 |
| Differential Enthalpy Kit | 1011701 |
| Hood Type Hail Guard, Coil Dim. 34” X 76” 3.5 – 4 Ton | 547846 |
| Hood Type Hail Guard, Coil Dim. 38” X 76” 5 Ton | 547847 |
| Low Ambient Kit | 918837 |
| U.S. – LP Gas/High Elevation Conversion Kit, 1 & 2 Stage models (0 – 10,000 ft. above sea level) | 904404A |
| Canada – LP Gas/High Elevation Conversion Kit, 1 & 2 Stage models (0 – 4,500 ft. above sea level) | 904405A |
| Universal Hard Start Kit | 912933 |
