Zud is available as a powdered cleanser and as a liquid dispensed in a squeezable container.
Zud cleaners contains pumice granules and oxalic acid, according to the Malco's website.
Liquid Zud cleaner is available in 19 ounce bottles, while the powdered form comes in two sizes--6 and 16 ounces.
Zud is an abrasive cleaner that removes rust and other types of mineral stains from metals, porcelain and counter tops, according to Malco.
As of December 2009, the average cost of Zud liquid cleanser is $450, while the 16-ounce powder sells between $350 and $400.