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Fits compatible SP1090
blower operation
A focused kit like this is especially useful when the valve body remains serviceable and the weakness is clearly concentrated in the lid area
Helps preserve configuration-specific switching logic
serviceable plumbing connections
Raypak 406A/407A Indoor Stack Kit (009841) bathcontrols Fits compatible SP1090The Raypak indoor stack kit is designed for compatible 406A and 407A heater applications where the supported venting setup for an indoor installation needs replacement or completion. A stack kit is useful because it helps create the intended connection between the heater and the indoor vent path, supporting cleaner exhaust handling and proper fit. This replacement is especially useful when the original venting components are incomplete, damaged, or no