FROG @ease SmartChlor® Floating Sanitizing System for Hot Tubs Spa Side Handrail The Hot Spring® Highlife Collection

The Hot Spring® Highlife Collection Pillow / Headrest fits the following Highlife Collection models:

This filter fits some Wellis Hot Tubs too - Monte Bianco

The Caldera Spas® Corner Neck Pillow / Headrest (2016-current) - Light Gray fits the following Caldera Spas® hot tubs:

found here

silver ion/granulated chlorine

FROG @ease SmartChlor® Floating Sanitizing System for Hot Tubs Spa Side Handrail The Hot Spring® Highlife CollectionThe FROG @ease Floating Sanitizing System for Hot Tubs features unique self regulating chlorine and Frog minerals to give you a simple solution for hot tub sanitizing. This system uses up to 75% less chlorine than traditional hot tub systems. The gray SmartChlor cartridge lasts up to 4 weeks and the blue Mineral cartridge lasts up to 4 months. Another great feature is that you only need to shock (oxidize) when you change the gray SmartChlor cartridge.