Bullfrog Spas @ease® SmartChlor 3pk (Old style, Triangular)

These FROG® @ease® Classic SmartChlor cartridges are specifically designed for select Bullfrog Spas models: X Series, STIL, and R Series spas. A Series spas manufactured before the 2023 model year. If your Bullfrog Spa utilizes dual cylindrical filters, these are the correct replacement cartridges for your system. The FROG @ease system provides self-regulating water care that simplifies maintenance. Its SmartChlor® technology allows you to use up to 75% less chlorine and maintains consistently low chlorine levels, significantly reducing the frequency of necessary hot tub maintenance.