Weil McLain 510-312-250 Aquastat with 1/2" Well 140-240°F Temperature Control

The Weil McLain 510-312-250 is a precision aquastat temperature control designed for hydronic heating systems. This immersion-style aquastat features a 1/2" well for direct temperature sensing in boiler or heating system applications.

Key Features:

• Temperature range: 140°F to 240°F for precise boiler control
• 1/2" immersion well for direct water temperature measurement
• Compatible replacement for Honeywell models L4080B1036, L4080D1044, and L4080D1250
• Reliable SPDT switching mechanism for system control
• Designed for commercial and residential boiler applications
• Factory-tested for accurate temperature differential control

This aquastat serves as a high-limit or operating control for hot water and steam boilers, automatically maintaining optimal system temperatures. The direct immersion design with included well ensures fast response times and accurate temperature readings. Ideal for replacement or new installation in Weil McLain boiler systems and other compatible heating equipment.