New long-lasting advanced, concentrated formula repels rust and iron stains in toilet tanks and bowls

Cleans with every flush

Easy-to-use, just drop in tank and forget it

Rinses away rust stains with no scrubbing

Keeps toilet tank/bowl stain-

Each tablet lasts up to 30 days

2 tablets per box

Safe for plumbing and septic tanks

contains no phosphates

Do not mix with bleach or any other household cleaner

Do not use with other in-tank cleaners