The water purifier is perfect for outdoor swimming pools, pools, baths, spa pools, plunge pools and many more and perfect for , , alcove bathtub, walk-in bathtub, bathtub, hot tub boat and most easy-to-use standard bathtubs, just a few seconds installation. The food grade mineral material features strong adsorption capacity and can fully adsorbing odors and heterochromatic from heavy metals and water, removing chloroform and other chlorine in water. It is perfect embodiment for the safe and environment friendly raw materials, non- and no odors, giving you a healthier life. Directly into Spa Filter, you not have to change it for four months. The multi-layer filtration makes water more healthy. This spa mineral stick can significantly improve the look and feel of the water, ensuring that the odor-free spa brings you clear water. Mineral material features strong adsorption capacity and can fully adsorbing odors and heterochromatic from heavy metals and water. Improves performance of -equipped spas, and assures an odor-free spa environment. Material: ABS+minerals colour: Yellow + Blue Package Contents: 2 * Water filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.