As of August 2015, Walmart sells at least four types of rust remover, including Whink Rust Stain Remover, CLR Calcium Lime and Rust Remover, Super Iron Out Powder Rust Remover, and Krud Kutter the Must for Rust Remover and Inhibitor. User reviews on Walmart.com provide customer ratings for each product.
Super Iron Out Powder rust remover is the highest rated of the four, based on user reviews, and it retails for $12.97. Whink Rust Stain Remover has a rating of 4.3 out of five and it retails for $5.47. CLR Calcium Lime and Rust Remover claims to remove calcium and lime deposits from coffee and tea pots, stainless steel, tiles, glassware, sinks, tubs and porcelain. Krud Kutter is a water-based biodegradable rust remover and inhibitor, though some clients feel that it does not protect surfaces from rusting.