6542-024 refers to the Jacuzzi® True™ Air Filter Nano Cartridge which is an air filter, not a standard water filter. It is specifically designed for the air intake system of the 2024 and newer Jacuzzi hot tubs equipped with the True Water Management (nanobubble and ozone) system.
- Compatibility: This air filter is compatible only with select 2024 and newer Jacuzzi models that have the True™ Water Management System as standard or an option. These models include the J-LXL, J-LX, J-300, and J-400 series.
- Maintenance Indicator: The cartridge features a transparent chamber filled with indicator beads that turn from blue to pink when it is saturated with moisture and needs replacement. The SmartTub® system (if enabled) will also send a notification for replacement, typically every 4–6 months.
