Make your spa experience even better with the HOTSPRING HOTUB Spa Mineral Cartridge Sticks. These blue sticks are designed to fit in your spa or hot tub cartridge filter and can purify up to 600 gallons of water. They are suitable for any spa or hot tub and are compatible with the HOTSPRING HOTUB SPA model.

The brand of these cartridge sticks is pnkmonkey and they are perfect for those who want to maintain a clean and healthy spa experience. The sticks are easy to use and can be replaced when needed. Upgrade your spa experience with these mineral cartridge sticks today!