The Calgon Water Softener Powder is a rare and large box weighing 4 lbs or 64 oz, containing 58.1 oz of product. Made in the United States, this laundry detergent powder is designed to soften water and help with laundry cleaning. With the trusted Calgon brand and powder form, this product is ideal for household use in removing tough stains and ensuring clothes are cleaned effectively.

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