Hot Spring Hot Tub Replacement Filters

Hot Spring (made by Watkins Wellness) has used a few distinct cartridge sizes across its product lines, and which one you need depends on whether your tub is a Highlife, Limelight, Hot Spot, or one of the older Classic-series models. Some take a single filter; some take two. The label inside the filter compartment will tell you, and so will the model pages below.

This database has 18 Hot Spring models from 1991 onward. If yours is older or a less common variant, the existing cartridge's printed part number is the quickest path to the right replacement.