Description
| ITEM # | MFG. | SIZE | QTY. |
| 503761 | 103304 | 3″ x 4″ | 1/6 |
| 503762 | 103305 | 3″ x 5″ | 1/6 |
| 503783 | 104205 | 4″ x 5″ | 1/6 |
TYPE “B”GAS VENT INCREASER & ALUMINUM DUCT
Double-wall construction
Non-positional locking system makes installation a snap
No tools required for disassembly
Compatible with all brands
Additional information
| Product ID | 503761, 503762, 503783 |
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