Spa Marvel Filter CleanerThe Spa Marvel Filter Cleaner is a powerful cleanser that deep cleans filter cartridges without the use of harsh chemicals, acids, or bleach. It is designed to remove oils, hair, dirt, and grime that can get trapped in the fabric of filter cartridges. Deep cleans filter cartridges without the use of harsh chemicals, acids, or bleach Removes oils, hair, dirt, and grime that can get trapped in the fabric of filter cartridges