Stains don't stand a chance. New gel formula sticks to the surface where applied for maximum cling time and cleaning power. Removes yellowing and tough waterline stains. Completely covers stains and dissolves them. Removes tough stains including rust, dried fish blood and leaf stains. Works on all fiberglass and painted surfaces and is ideal for vertical surfaces.Key FeaturesRemoves yellowing and tough waterline stainsCompletely covers stains and dissolves themWorks on all fiberglass and painted surfacesDelivers maximum cling time and optimal cleaning power