Ahlsen - mspa Replacement Filter Cartridges for All Spa Swimming Pool Models, Filter Cartridges with Net for MSpa Bubble Spa (4 Pack)

Keep your pool water clean and fresh with this high quality pool replacement filter cartridge. It helps keep the hot tub clean. The filter cartridge is installed in the filter pump and catches dust as it passes through the system. Prevents dust from entering the pump and heater and extends its lifespan. For maximum efficiency, clean the cartridge weekly and replace it once a month or sooner. They are easy to clean and replace when needed.