Reduce Chemicals Usage: This is a highly effective cartridge for Vision Cartridge Dimension One Spa to purify your spa water. Mineral purification is a natural process that effectively and consistently improves water quality without the overuse of excessive hot tub chemicals. It maintains a balanced chemical environment and can be used with a hot tub ozone system for a more comfortable spa experience. Perfect for Dimension One Spas: This Vision hot tub filter 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, keep the spa clean, and provide crystal clear, odor-free water for an enhanced bathing experience. Lasts Up to 6 Months: This Vision cartridge for Dimension One Spa lasts up to 6 months. Use the Date Ring to track replacement time. With minimal maintenance, it helps keep spa water cleaner for longer periods, up to 6 months. Natural & Safe Material: This 01512-261 hot tub filter shell is made of high-quality ABS material. Reduce Skin Irritation: This replacement cartridge for Dimension One Spa works continuously to improve water quality as the filtration system circulates water through the spa. The hydrotherapy mineral cartridge is gentle on the skin, providing a soothing and comfortable experience similar to that of a natural mineral spa. Color: Purple Material: ABS Package Contents: 2 x Dimension One Spa Filters Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm. The package includes only the items listed above; other products are not included.