OBMAO Hot Tub Silver Ion Cartridge，Spa Mineral Sticks with 4 Months Lifetime Universal for Hot Tub, Keeps Spa Water Crystal Clear(Grey,2PCS)

OBMAO Hot Tub Silver Ion Cartridge，Spa Mineral Sticks with 4 Months Lifetime Universal for Hot Tub, Keeps Spa Water Crystal Clear(Grey,2PCS)

• Contains 4 types of mineral balls: Hot tub silver ion cartridge uses 4 natural mineral balls that can automatically add trace minerals to the hot springs, effectively reducing the use of chlorine and bromine gas.
• Efficient Purification Effect:The hot tub silver ion cartridge can significantly improve the look and feel of the water,reduce impurities in the hot springs,and keep the spa water clear and clean.
• Long Life and Low Maintenance: Simply place the spa mineral stick into the existing filter and let it work.The spa mineral ion cartridge will work continuously for four months. You'll be able to enjoy a hassle-free spa experience for 4 months!
• Easy to Install: The spa mineral stick comes with a complete instruction manual. Follow the steps in the manual to quickly complete the installation.
• Suitable for Most Hot Tub Filters: The hot tub silver ion cartridge for most spa and hot tub filters.The minimum required length for hot springs silver ion cartridge is approximately 6.9 inches and the minimum filter hole diameter is 1.8 inches.