| Other Branch Availability |
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AO Smith® Exhaust Connector, 4 in Length, For Use With: BTHL 300A, 400A, 500A and 300/301 Series Commercial Water Heaters
| Length | : | 4 in |
| Suitable For Use With | : | BTHL 300A, 400A, 500A and 300/301 Series Commercial Water Heaters |