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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Engineered for longevity in challenging environments
preventing reservoir overflow and protecting the equipment from water damage
Constant dripping often indicates thermal expansion issues rather than a valve defect
the 42-100491-09 is the manufacturer-designated superceded part number
What thermopile should I use with this valve
Lochinvar & A.O. Smith 100135269 Burner 320788-704 Engineered for longevity in challengingThe Lochinvar & A. O. Smith 100135269 Burner is a precision engineered 100% OEM replacement for high efficiency condensing boilers, specifically designed for WH285 and WH399 models. As a critical component in the combustion assembly, this burner ensures an optimal air to fuel ratio, supporting the high turndown ratios found in the Lochinvar Knight and A. O. Smith boiler series. Built to industrial grade standards, the assembly is compatible with both
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