Enhanced Static Pressure: Optimized scroll housing geometry maintains the specified CFM

this Selectra series valve features a unique counter-spring mechanism that maintains a secure closed position even against the continuous downward pull of pull-through air systems

or power-stealing configurations to suit various field wiring scenarios

making it an ideal choice for technicians performing HVAC flue repairs or upgrading existing natural draft appliances

Lennox 17F26 Collector Box 323269-701 Enhanced Static Pressure: Optimized scrollThe Lennox 17F26 Collector Box, also known as the cold end header box kit (MPN 619598 26), is a critical OEM replacement component for high efficiency condensing furnaces, including the Lennox EL296 series and various G71MPP units. This collector box is engineered to manage the transition of flue gases and the resulting corrosive condensate from the secondary heat exchanger to the drain lines. A common failure point in aging systems occurs when the