ACETOP Spa Mineral Stick 2 Pack Hot Tub Filter with 4 Months Lifetime Cartridge Universal for Spas Filters Swimming Pool Fish Pond (Blue)

• High Quality Material: Our hot tub mineral stick is made of healthy and high-quality ABS materials, no odors and exquisite workmanship. Drops directly into spa filter, keep fresh and clear water for a long time, bring you a natural and healthy spa. Excellent Filtration System: The spa mineral filter stick multi-layer filtration makes water more healthy and can effectively filter out a variety of impurities, keeping spa water in good quality and keep your tub clean Easy To Use & Replace: Just place this mineral stick in your spa filter or skimmer basket and let them do their work, not other complicated process needed. 2 pcs convenient for you to replace in time. (Recommended to replace it once 3-4 months.) Low Maintenance: With our spa filter cartridge, can provide up to 4 months of service for your hot tub filter, and the maintenance cost is extremely low, helpful to save your time and cost, you will not have to check or change it for the next four months. Widely Applicable: Suitable for most spas and hot tubs, also compatible use for inflatable spa, jacuzzi, walk-in bathtub, outdoor swimming pools, hot spring pools, baths, plunge pools and most easy-to-use standard bathtubs.