for suction lines larger than 7/8 inch

1 Cv normally Open Seat

providing flexibility for different controller outputs

inspect the bypass flame adjustment

Structural Integrity: Precision-machined 1" diameter shaft prevents bowing or flexing during high-velocity airflow cycles

Lennox 74K96 Pressure Test Kit 321894-706 for suction lines larger thanThe Lennox 74K96 Pressure Test Kit (also cataloged as LB 91053) is a precision engineered diagnostic tool designed specifically for checking the integrity of Lennox Pulse furnaces. As any veteran tech knows, identifying hairline fractures or compromised seals in a heat exchanger leak test is critical for ensuring occupant safety and preventing carbon monoxide bypass. This genuine OEM Lennox 74K96 kit provides the necessary components to isolate and