Reduce Chemicals Usage: This is a highly effective cartridge for Dimension One spas to purify spa water. Mineral purification is a natural process that effectively and consistently improves water quality without the overuse of excessive hot tub chemicals. It helps maintain balanced chemical levels and can be used with a hot tub ozone system for a more comfortable spa experience. Perfect for Dimension One Spas: This vision cartridge is designed specifically for the Vision cleaning system in Dimension One spas. It utilizes the water flow through the D1 water management system to reduce chlorine odor and keep the hot tub clean, providing crystal clear, odor-free water for an enjoyable spa experience. Lasts Up to 6 Months: This cartridge lasts up to 6 months. Use the Date Ring to track when replacement is needed. With minimal maintenance required, it helps keep spa water cleaner for longer periods, up to 6 months. Natural & Safe Material: This spa filter shell is made of high-quality ABS material, ensuring durability and safe operation. Reduce Skin Irritation: This replacement cartridge for Dimension One spas works continuously to improve water quality as the filtration system circulates water through the spa. The mineral-based purification system is gentle on skin, offering a soothing and comfortable experience similar to that of a natural mineral spa. Color: Purple Material: ABS Package Contents: 2 x Spa Filter Cartridges for Dimension One Spa Note: The physical product may have slight color variations due to lighting or screen display differences, which do not affect functionality. Measurement tolerances may vary by +/- 1-3 cm.