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Zep Sulfuric Acid Drain Opener is a powerful acid drain cleaner formulated to tackle the most severe clogs. This professional-grade sulfuric acid drain cleaner dissolves grease, fats, oils, proteins, paper, and hair, making it the ultimate solution for tough backups.

• Powerful Drain Opener: Pro-grade drain opener clears the toughest clogs fast.
• Quick-Action Formula: Works immediately to melt grease and break down stubborn buildup.
• Easy-to-Use: Effective drain clog remover for serious blockages in toilets, sinks and drains.
• Two Uses Per Bottle: Each bottle provides enough formula for two applications.
• Made in the USA: Crafted domestically with high-quality, globally sourced materials for dependable performance.

Instructions

FOR TOILETS - Reduce water level with a plunger. Add 2 ounces of product to the toilet and let stand for 2 minutes. Do not flush. Add an additional 14 ounces of product to the toilet and let stand for 15 minutes. Pour 2 quarts of cold water into the toilet and flush 2-3 times. Avoid contact with skin, eyes and clothing. THIS PRODUCT MAY ERUPT VIOLENTLY FROM DRAIN, spewing hot acid and contents of drain onto persons in vicinity causing severe burns, when poured into drain containing alkaline drain openers and/or hot water. Follow protective measure specified under DIRECTIONS. Do NOT use before or after other chemical drain openers or any other chemicals. Do NOT use in drains containing a build-up of plaster waste material. A toxic gas may be released. Use from this bottle only and do NOT transfer contents into any other container. NEVER add water to contents while in container because of violent reaction. Do NOT attempt to disassemble plumbing or remove clean-out plug(s) from lines containing this product. When flushing drain lines, use cold water; never use hot water. Never use a plunger when product is in drain lines. Keep container tightly closed when not in use. Do not allow to contact porcelain, enamel, aluminum, or chrome. Do not mix with other household chemicals. KEEP OUT OF REACH OF CHILDREN

For Ingredient Disclosures and SDS Information