This is the switch assembly only

single-pole (1P) circuit breaker designed for high-voltage control circuits

and 6" sizes

010" orifice (part 560-528-985)

making it ideal for finished interior spaces where large horns are visually intrusive

Weil Mclain 383-500-255 Gasket This is the switch assemblyThe Weil McLain 383 500 255 Cover Plate Gasket is a critical OEM sealing component engineered specifically for Ultra Gas Fired Water Boilers, including Ultra 155, 230, and 310 series units. High efficiency condensing boilers demand a precise, airtight seal at the heat exchanger cover plate to maintain combustion integrity and prevent the escape of flue gases. This replacement boiler gasket is manufactured from high grade, heat resistant materials