Sundance® 75 Sq Ft Spa Filter Cartridge – 6540-723 Replacement (2005–2009)

Turn off power to the hot tub at the breaker before servicing the filter.

Open the filter compartment or access panel according to your specific spa model instructions.

Remove the old filter cartridge by unscrewing the filter retainer or pulling straight out, depending on your spa design.

Inspect the housing and rinse any debris from the filter well with clean water.

Insert the new Sundance® filter (6540-723) ensuring it seats firmly and aligns with any guides or threads.

Re-secure the filter retainer or cap as specified by the manufacturer.

Close the access panel and restore power to the hot tub.

Run the filtration cycle to check for proper flow and fit.

Q: How often should I replace this filter in my hot tub?

A: For best performance, replace this Sundance® filter every 6–12 months, or more frequently if used heavily or if water clarity decreases.

Q: Is this filter compatible with all Sundance® spas?

A: This cartridge specifically fits models requiring the 6540-723 filter with roughly 75 sq ft media. Always verify your spa’s manual for exact part cross-reference.

Q: Can I clean and reuse this filter?

A: Yes. Rinse with a hose and use a dedicated filter cleaner before soaking in filter cleaning solution for deeper maintenance. However, repeated cleanings will eventually reduce efficiency.

Q: Will this work in a Jacuzzi® spa?

A: Yes, it fits select older Jacuzzi® Hot Tub models that originally used the 6540-723 spec. Verify your spa part number to be certain.

Q: How do I know if this is the right size filter?

A: Measure your old filter’s diameter and length to ensure it matches ~5.5″ diameter × ~10.8″ length — that confirms compatibility.