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The Weil-McLain 80 S1 Rear Flue 12 Damper, MPN 425800098, ensures optimal exhaust control for your boiler system. Designed to enhance the efficiency and safety of Weil-McLain 80 Series boilers.
This damper is crucial for maintaining proper exhaust flow and preventing backdrafts. It’s compatible with models 158-121-303 and 158-124-303, providing a secure fit and reliable performance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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