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23% hydrochloric acid to remove rust.
Cleans and descales.
Formulated for restorative cleaning.
TO CLEAN TOILETS AND URINALS: Do not use this product in a manner inconsistent with its labeling. 1. Flush fixture. 2. Open pour spout 45°. 3. Squeeze to coat surfaces under the bowl rim. 4. Let stand for 10 min. 5. Scrub all surfaces with bowl swab, especially under the rim. 6. Rinse by flushing.