About This The genuine Nu-Calgon 4298-22 is a 32 oz. Bottle of PowerZyme Liquid Enzymatic Drain Line Treatment that is ideal for A/C condensate pans and drains and perfect for food service and kitchen drains. PowerZyme Liquid Enzymatic Drain Line Treatment is a powerful formula that keeps drains flowing freely. The Nu-Calgon 4298-22 eliminates foul and musty odors and is non-corrosive. Nu-Calgon PowerZyme Liquid Enzymatic Drain Line Treatment has an easy pour top for any application. Nu-Calgon, the brand you trust, provides quality chemicals and specialty products for professional use only in the air conditioning, refrigeration and heating markets. Overview Brand : Nu-Calgon Scent : Unscented Item Weight : 2.2 Pounds State of matter : Liquid Product Benefits : Keeps drains flowing freely, eliminates foul odors, and is non-corrosive, ensuring effective and safe drain maintenance. Keeps drains flowing freely, eliminates foul odors, and is non-corrosive, ensuring effective and safe drain maintenance.