The 500 PSI Mask Scrub is designed to clean both new and old mask lenses, effectively removing residue from manufacturing process that prevents defogging solutions from working properly. It can also be used periodically on older masks to eliminate residue buildup, ensuring clear lenses for better visibility during dives. Application is simple: just apply a small amount to the dry interior lens surface, rub it in firmly with your fingers, and rinse with fresh water for a clean and clear mask. Helps removal of residue build-up Helps de-fog solutions work properly Reviews There are no reviews yet. Be the first to review “500 PSI Mask Scrub 1oz” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.