Key Benefits Universal Compatibility: Specifically designed for Robertshaw 7100 and 7200 series gas controls and compatible with Uniline series 700 units

the York S1-025-26392-704 serves as a direct OEM replacement limit switch for several residential and commercial configurations

Efficient Retrofitting: Allows for quick sensor replacement without draining the system or replacing the entire well

providing a 40°F differential that ensures stable blower cycles and prevents short-cycling

maintaining the correct water column is critical for downstream equipment performance and system stability

Berko 4520-2048-000 Limit Switch Key Benefits Universal Compatibility: SpecificallyThe Berko 4520 2048 000 is an OEM 135F CO Auto Limit Switch designed for high performance thermal regulation in Marley Engineered Products and QMark 900 Series B heating systems. This 2 pole limit switch operates with an automatic reset mechanism, functioning as a critical safety component that opens on temperature rise to prevent overheating. Engineered for HVACR technical specifications, it features a single pole single throw (SPST) switch action,