Sundance® Disposable MicroClean® Filter – Fine Microfiber Cartridge (2002–2025) – part #6540‑502S

Power off spa and remove outer pleated filter (6540‑501S).

Pull out the used MicroClean® upper cartridge (6540‑502S).

Insert the new microfiber cartridge vertically inside the outer filter housing.

Reinstall outer filter, close compartment, restore power.

Replace the disposable cartridge every 3–4 months or after draining the spa.

Q: Which models use this filter cartridge?

A: Compatible with Sundance® Spas models 680, 780, 880, and 980 built from 2002 through 2024.

Q: Can I clean and reuse it?

A: No—this microfiber cartridge is not rinsable and must be replaced after 3–4 months.

Q: What outer filter must it be used with?

A: Works together with the pleated cartridge #6540‑501S in the MicroClean® dual-stage system.