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Heatcraft Refrigeration 37000702 Fan Guard 340155-7024 The York S1-363-93521-704 Heat ExchangerThe Heatcraft Refrigeration 37000702 Fan Guard is a critical safety and performance component designed for 12 inch fan assemblies across Bohn, Chandler, and Climate Control evaporator units. This 12" molded fan guard is engineered from high impact composite materials to withstand the rigorous thermal cycling and moisture heavy environments typical of commercial refrigeration systems. By maintaining a precise aerodynamic profile, the guard ensures that