Mineral sticks for spa filters, 4-month lifespan, yellow, 2 pieces

[Natural Hot Spring Experience] The natural hot spring mineral stick can automatically add trace elements, reduce hot spring impurities, create cleaner water quality, and make you feel as comfortable as a natural hot spring! Extend the life of your spa: This silver nitrate wand can extend the life of your spa, keep your crystals clean, keep your spa sparkling clean and fragrant, and make your guests' spa experience unparalleled! [High Performance at a Cost] This hot spring silver ion stick is a product created based on market research and customer needs. Maintenance time can last up to 4 months, and the maintenance cost is extremely low. It can be used with your existing filters. Simply place the spa wand in the filter. You can enjoy 4 months of worry-free spa experience! Suitability: The minimum filter length required for spa mineral filter stick parts is approximately 6.5 inches and the minimum filter hole diameter is 1-1/4 inches; Suitable for spas and hot tubs up to 500 gallons/2000 liters.