Excellent Cleaning Effect: You receive 2 hot tub mineral sticks that effectively enhance water quality regardless of temperature, providing a great cleaning effect in both cold and hot water. LONG-TERM USE: Our hot tub filters offer 24-hour circulation, are easy to install, and cost-effective, lasting up to 120 days. They improve your water quality long-term and are compatible with most spa equipment and products. Comfortable Experience: Spa minerals in hot tubs can improve water quality, reduce impurities, and other components in the water, allowing you to enjoy a comfortable spa experience. Convenient to Use: Hot tub mineral sticks are unaffected by heat. Simply add them to your preferred water care system for quality spa water. They are easy to use, saving you time and energy. Color: Gray Material: Plastic Package Contents: 2 x Mineral Ion Stick (Note: Only the above package content is included. Other products are not.) (Please note: Light reflections and different displays may cause the color of the item in the picture to differ slightly from the real item. The allowed measurement error is +/- 1-3 cm.)