Sundance® Swim Spa Replacement Filter MCU2 880 2024 130 sq ft (inner & outer core) – part #4520060

Q: Is this filter a single-piece or dual-core?
A: It’s a dual-core system that replaces both inner and outer cartridges in one unit (MCU2).

Q: For which models is this compatible?
A: Fits 880 Series MCUs from mid-2024 onward (Stream, Surf, etc.).

Q: Can I purchase cores separately?
A: Yes—inner core (6473-453S) and outer core (6473-452S) are sold individually, or as the full assembly (6541-964S).

1. Power off the swim spa and access the filter compartment.
2. Remove the existing inner and outer filter cores.
3. Insert the new MCU2 880 inner core (6473-453S) followed by the outer core (6473-452S) as a combined assembly.
4. Secure the filter lid and restore power.
5. Run the pump for a few minutes to confirm proper flow.
6. Rinse or replace as per maintenance schedule (typically every 6–12 months).