York S1-025-43272-000 Expansion Valve 321894-708 The 41-590 silicone carbide ignitor

The 41-590 silicone carbide ignitor is the traditional high-surface-area heating element

Key Benefits: Enhanced Boiler Safety: Meets rigorous CSD1 standards

Weather Proof

Hard-braze or mechanical fittings maintain high-pressure seal integrity under heavy vibration

This 5-pack of replacement boiler fuses is engineered for a precise fit within the Weil McLain Ultra

York S1-025-43272-000 Expansion Valve 321894-708 The 41-590 silicone carbide ignitorThe York S1 025 43272 000 is a field adjustable thermal expansion valve (TXV) designed for precise refrigerant metering in York, Coleman, and Luxaire residential and light commercial systems. Featuring a 3 8 x 5 8 ODF connection, this unit facilitates a secure solder fit for high pressure HVACR applications. As the direct replacement for S1 025 45297 000, it maintains consistent evaporator superheat, preventing liquid slugging and ensuring optimal