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The York S1-9951-1731 is a gas orifice for HVAC systems. With a hole size of 0.173 inches, it manages gas flow to the burner. This component is essential for the combustion process in heating systems.
This orifice is vital for efficient gas control.
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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