Inner Core Filter – MicroClean® Ultra for Sundance® Spas

The 6473-164S Inner Core Filter is a critical component of the MicroClean® Ultra Filtration System used in select Sundance® Spas. Designed exclusively for use with the MicroClean® Ultra Outer Filter (sold separately), this inner core filter adds a second stage of filtration, helping trap ultra-fine particles that other filters might miss.

Crafted with a dense polyester media, the inner core captures impurities like body oils, debris, and microscopic contaminants—ensuring your hot tub water stays clean, clear, and safe. This two-stage filtration system is an essential part of Sundance’s advanced water care technology, delivering improved performance and longer-lasting cleanliness with minimal effort.

Replace regularly as part of your spa’s maintenance routine to maintain optimal filtration and extend the life of your spa components.

Key Benefits:

• OEM part for Sundance® Spas using MicroClean® Ultra filters

• Acts as Stage 2 filtration in a two-part system

• Captures ultra-fine particles and impurities

• Made with high-density polyester for superior filtration

• For use with compatible Sundance® spa models only

• Helps reduce sanitizer demand and extend water clarity