PAL Lighting Freeze Switch [PCR 5 PC 2BU] (MQT8KK3XA) pentairparagon and this Balboa Hydro Air and this Balboa Hydro Air Microssage jet assembly is made for compatible 1 1 2 inch by 1 inch applications where the original jet has worn out and the seat no longer feels as effective or as visually clean as it once did Using the correct tool can help improve efficiency and support cleaner service results this freeze switch helps support equipment protection and more dependable cold weather system management This part has practical value because it is matched to specific PAL Lighting or Powerlite platforms rather than serving as a broad substitute