As a direct replacement for legacy part 100167474

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Key Benefits for Technicians High-Capacity Throughput: Supports 505

Key Benefits for the Contractor Integrated Stall Protection: The internal floating control with timeout logic eliminates the need for external end-switches

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Lochinvar & A.O. Smith 100157611 Kit 321894-709 As a direct replacement forThe Lochinvar 100157611 (cross referenced as A. O. Smith 100157611) is a heavy duty 4" side wall vent kit engineered for high efficiency condensing water heaters and boilers. This horizontal termination kit is built to manage flue gases effectively while preventing recirculating exhaust into the air intake, ensuring optimal combustion stability. Designed for compatibility with specific Lochinvar Knight and A. O. Smith Cyclone series models, the