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The HPRMK-1 is the standard Hankison maintenance kit designation used for stocking OEM-equivalent repair components
Thermal Resistance: Class F rated for handling elevated operating temperatures without insulation breakdown
scaled heat exchanger
requiring a replacement 7735 switch
Lochinvar & A.O. Smith 100109281 Burner Assembly 326058-756 The HPRMK-1 is the standardThe Lochinvar & A. O. Smith 100109281 Burner Assembly is a high performance OEM natural gas burner designed for Flammable Vapor (FV) ignition systems in residential and commercial water heaters. Featuring a precision drilled #33 orifice, this assembly ensures optimal fuel to air ratios and consistent thermal output. It serves as a direct 100109281 replacement part for AOSmith, State, and American water heater models requiring a 6 inch diameter burner
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