SGQCAR 2Pcs Hot Tub Mineral Stick,Spa Mineral Stick Last for 4 Months,Reducing Chlorine and Bromine Requirements,Universal for Hot Tubs,Spas Filters,Swimming Pool (2 Blue) - WeiStoreGo, 122-GYZ-TWW2202221

• FUNCTION -- Our spa mineral sticks add trace minerals to the water and reduce impurities in the water, thus keeping the water clear and making you as comfortable as if you were in a pure natural spa. LONG LASTING -- Spa mineral has a maintenance time of up to 4 months. Just simply drop the spa stick into your existing device and let the hot tub stick do their work.You can enjoy a carefree spa experience for 4 months. EASY TO INSTALL -- This hot tub stick is equipped with a complete manual. The installation can be completed quickly according to the steps of the manual and is not affected by heat. It can be installed at the existing flow rate. Just put the stick mineral into the existing filter, and then Let the hot tub stick work. WIDE APPLICATION -- Make sure your filter is longer than 6.5" and the diameter of the filter hole is larger than 1.25" to fit our spa stick mineral. Hot tub stick suitable for spas and hot tubs up to 500 gallons / 2000L and pools to keep the algae out. SAFE MATERIALS -- Hot tub mineral sticks are made of premium ABS plastic, strong and odorless.