2 qt Out Filter Mate Water Softener Cleaner Liquid Out filter Mate heavy duty softener cleaner intensely removes Lime rust and other build up that renders a softener useless Features . Softener Chemicals Kits. Removes iron lime tannins and other contaminants. A mounted system with automatic dispensing wick provides up to 2 months of cleaning. Removes moderate to heavy levels of organic and mineral build up. Prevents rust and mineral staining. NSF listed Specifications . Country of Origin United States. Container Size 2 qt. NSF Listed Yes. Weight 5 5 lbs