WC Duck Blue Bloc Intank

Brand Origin and Manufacturing

WC Duck, known as Toilet Duck in the United States, is a toilet cleaner brand introduced in 1981 by S. C. Johnson & Son. The brand is recognized for its uniquely shaped bottle designed to assist in dispensing the cleaner under the toilet rim. The design was patented in 1980 by Düring AG from Dällikon, Switzerland. The product is manufactured in multiple countries to meet global demand.

Ownership Details

S. C. Johnson & Son, the company behind WC Duck, is an American multinational corporation headquartered in Racine, Wisconsin. The company specializes in manufacturing cleaning supplies and other consumer products. As of 2026, S. C. Johnson & Son continues to own and operate the WC Duck brand, with no known subsidiaries managing the brand locally.