Because this is an interchangeable hub style blade

but you should verify your existing fan blade bore before installation

Direct Retrofit: Proven compatibility for replacing legacy Honeywell 301-style and 1309A0043 gas detection hardware

Measuring the microamp signal with a multimeter is the standard technician's test for confirming a weak signal

Laars Heating Systems R5C5300 Mounting mario Because this is an interchangeableThe Laars Heating Systems R5C5300 is a critical Weldment Mounting Blower assembly designed specifically for high efficiency hydronic boilers and volume water heaters. As a direct replacement for 5C5300, this genuine OEM replacement part ensures the blower motor and housing maintain precise mechanical alignment within the combustion air system. Structural integrity is paramount in Laars boiler parts; the R5C5300 is fabricated to withstand the thermal