Weil McLain 510-312-209 Temperature Control Refrigerant As a direct replacement limit

As a direct replacement limit switch

OEM Compatibility: Specifically engineered for the Johnson Controls FD-1300 Series to ensure exact fit and finish

and a complete set of NBR (Buna-N) gaskets and seals to eliminate internal bypass and external leakage

OEM Bard part designed for direct replacement applications

Engineered with a 1/150# pressure rating

Weil McLain 510-312-209 Temperature Control Refrigerant As a direct replacement limitThe Weil McLain 510 312 209 is a field proven High Limit Temperature Control engineered for critical hydronic safety in residential and commercial boiler systems. Designed specifically for the Weil McLain EG, EGH, LGB, MGB, and SGO boiler series, this SPST aquastat provides reliable over temperature protection. It operates on an automatic recycle logic, ensuring that the system restarts without manual intervention once water temperatures return to