ScotchCorp Instant Power Toilet Tank Cleaner Powder 16 oz Removes Rust & Minerals

• Amazon now offers ScotchCorp Toilet Tank Cleaning Powder 16 oz, removes rust and limescale, now $2.64 (list price $5.28).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: Just pour a little powder into the tank, let it soak for a while, and the limescale and rust will gradually come off—no scrubbing needed.