Keep your spa clean and your filter working at optimal efficiency with Baracuda Spa Cartridge Cleaner 125g. Baracuda Spa Cartridge Cleaner 125gm is used to remove grime and organic build-up on spa cartridge filters. This high-performance Baracuda Spa Cartridge Cleaner keeps your spa filter working at its optimal level for longer. Simply use this cleaner when you need to maintain your spa waters clarity and quality by cleaning off the filter cartridge. Follow the directions on the package carefully.