Caldera Spas® Utopia Series Pillow / Headrest 2016+ (Fits Cantabria, Niagara, Tahitian, Florence+) Cold Plunge Water Care Freshwater™ pH / Alkalinity Down

Freshwater™ pH / Alkalinity Down is compatible with all spa water sanitization systems including: silver ion/granulated chlorine systems

filter found here

Please Note: FROG makes blue mineral cartridges that say @ease and Serene on them and are different shades of blue

The FROG @ease Smartchlor® Cartridge 3pk works exclusively with the FROG @ease Floating Sanitizing System for Hot Tubs

leaves a fresh scent

Caldera Spas® Utopia Series Pillow / Headrest 2016+ (Fits Cantabria, Niagara, Tahitian, Florence+) Cold Plunge Water Care Freshwater™ pH / Alkalinity DownThe Caldera Spas Utopia Series Pillow Headrest 2016+ fits the following Caldera Spas Utopia Series hot tubs: Cantabria 2016 current Florence 2018 current Geneva 2016 current Niagara 2016 current Provence 2018 2021 Ravello 2022 current Tahitian 2016 current Color: Light Gray All of our Caldera Spas filters, headrests and parts are OEM and come directly from Watkins, who is the manufacturer of Caldera Spas.