Hot Tub Things® 880 Inner Filter (2024+) – Replaces Sundance® 6473‑453S

Power off your hot tub before opening the filter compartment.

Remove the outer filter (if installed) to access the inner chamber.

Remove the used inner filter and discard.

Insert the new disposable inner filter into the center chamber.

Reinstall the outer filter around the inner filter and restore power.

Q: What Sundance® spas does this filter fit?

A: It fits 880 Series models manufactured from mid-January 2024 onward with the updated MicroClean® Ultra system.

Q: Is this filter reusable?

A: No, the inner filter is single-use and should be replaced, not rinsed.

Q: Do I need to pair this with an outer filter?

A: Yes, it works in combination with the 880 outer filter (replaces part #6473‑452S).

Q: How often should I replace it?

A: Replace every 3–4 months, or more frequently with heavy spa use.

Q: Is this an official Sundance® filter?

A: No, this is a high-quality compatible replacement made by Hot Tub Things®.