ECOLAB 1 Gal. Calcium, Lime and Rust Remover Concentrate 7700402 - The Home Depot
ZEP 32 oz. Calcium, Lime and Rust Stain Remover ZUCAL32 - The Home Depot
CLR Calcium Lime & Rust Remover 20L
CLR Calcium Lime and Rust Remover, Multi-Use Household Cleaner, EPA Safer Choice, 28 oz - Walmart.com
CLR Calcium Lime Rust Remover 128 oz - Powerful Non-Toxic Formula - Removes Lime & Calcium - Ideal for Bathtubs, Sinks, Glass & More in the Rust Removers department at Lowes.com