York 028-11977-000 O-Ring 321702-401 Replacing a failing valve with
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Description
York 028 11977 000 O Ring 321702 401 Replacing a failing valve with Replacing a failing valve with this genuine Lochinvar gas control unit helps eliminate erratic ignition cycles and inconsistent flame rectification Durable Internals: Features all stainless steel valve mechanisms and a ball float for maximum resistance to corrosion and erosion