Instant Power Toilet Bowl Restorer®. Guaranteed. Instantly removes all deposits & stains. Improves flushing. Net contents: 0.887 litre (30 fl. oz. US). Instant Power is guaranteed to instantly remove all rust, lime and mineral deposits. Improve toilet flushing action by clearing clogged toilet flush holes. Safe for use with septic systems. Guarantee: If not completely satisfied, send receipt with brief explanation to appropriate country for a refund of purchase price. The instant power help line: In USA: 800-613-4242, 9am - 5pm CST, Mon - Fri. & 214-943-4605 (Outside USA). guarantee@scotchcorp.com. www.scotchcorp.com.