| Plenum System | 5 |
| Round | 6 |
| Rectangular | 19 |
| Wall Stack | 25 |
| Oval | 28 |
| Register Boots | 31 |
| Saddles | 37 |
| Take-Offs | 40 |
| Ceiling & Register Boots | 47 |
| Filters | 50 |
| Equipment Accessories | 56 |
| Air Cleaner to Furnace Transitions | 66 |
| Spiral | 79 |
| Flexible Duct | 94 |
| Venting | 95 |
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