Filters for spas and hot tubs

How to choose a spa cartridge filter

Start with the code on your original filter. Compare its height, diameter, thread or other fitting and your spa model year. A similar photograph does not necessarily mean a matching filter.

The same code, a different generation

For AKU3001, also check the listed year. Our range has separate items for different codes and generations. If unsure, compare the product details with your original filter before buying.