Features: 1.The food grade mineral material features strong adsorption capacity and can fully adsorbing odors and heterochromatic from heavy metals and water, removing substances harmful to the body such as chloroform and other chlorine in water. 2.Equipped with a complete manual. The installation can be completed quickly according to the steps of the manual and is not affected by heat. 3.The multi-layer filtration makes water more healthy and can effective filtrate scale, residual chlorine, red worm, rust and many more. 4.Improves performance of spas, and assures an odor-free spa environment. Effectively inhibits bacterial regeneration. 5.Suitable for Hot Tub, Fish Pond, Pool, Spa, Swimming Pool, Water, ect. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. : Material: ABS+ mineral Size: 3.2x 3.2x41cm Battery: No Color/Style:As the picture shown Net weight: 124g Packaging size: 5x4x17cm Application: for Hot Tub, Fish Pond, Pool, Spa, Swimming Pool, Water includes:1 x Spa Cartridge Stick