FROG Serene Mineral Cartridge Spa Accessories 4 built-in rollers on each

4 built-in rollers on each Cover Roller makes it a "snap" to slide

This ensures a quality salt therapy experience in the comfort of your own home

enjoy the LED back-lit water fountain and LED illuminated footwell

Featuring industry-leading

FROG Serene Mineral Cartridge Spa Accessories 4 built-in rollers on eachThe FROG Serene Mineral Cartridge is used with the FROG Serene Bromine Cartridge to kill bacteria 2 ways and maintains cleaner, clearer, softer water thats easier to care for. Simply replace the mineral cartridge once every 4 months, and the bromine cartridge once every 2 4 weeks. The FROG Serene System uses up to 50%* less bromine than standard bromine spas.