Sundance MicroClean Filter

Not necessarily. While the outer filter handles larger debris and may need more frequent cleaning, the MicroClean Ultra Inner Core is a specialized secondary filter. You should replace it based on the manufacturer's recommended schedule or when you notice a drop in water clarity, regardless of the outer filter's condition.

This filter is designed as a disposable component. Because it is constructed from dense polyester media to trap microscopic particles, attempting to wash it often damages the fibers or fails to fully remove the trapped contaminants, which compromises your water quality.

This specific filter is designed for Sundance Spas that utilize the two-part MicroClean filtration system. It is not a universal fit for every Sundance model, so please verify your spa's specific filter model number before purchasing.

By effectively capturing ultra-fine particles, body oils, and microscopic contaminants that primary filters often miss, this inner core reduces the organic load in your water. With fewer impurities to break down, your sanitizer can work more efficiently, often allowing you to use less product.

Running your spa without the inner core filter allows microscopic debris and oils to circulate freely through your plumbing and heater. This not only reduces water clarity but can also lead to increased buildup on internal components, potentially shortening the lifespan of your filtration system.