the S1-3400-3151 is a standard high-limit component commonly used across York

Key Benefits Verified Compatibility: Exact fit for McDonnell & Miller Series 63 and E-28 low water cut-off assemblies

A compromised heat shield gasket can lead to scorched internal wiring

providing the necessary thickness and durometer to withstand professional-grade operating conditions

Field technicians recognize the GKT1533 as the standard for Trane compressor services and Rotolock valve maintenance

Robertshaw 1751-016 Regulator Kit the S1-3400-3151 is a standardThe Robertshaw 1751 016 LP Regulator Kit is a professional grade solution for converting 7100 and 7200 series gas valves to liquid propane (LP) operation. Engineered for precise straight line regulation, this kit is calibrated to maintain a consistent 11" WC (Water Column) outlet pressure, which is critical for the safe and efficient performance of industrial and residential heating equipment. This unit serves as the direct replacement for 58H67 and