RectorSeal’s LiquidDrain commercial liquid drain cleaner is safer for the environment, service technician, and plumbing system than caustic acid-based liquids. The 1-quart (0.94 L) formula is an industrial-strength, non-acid and non-flammable drain cleaner and opener formulated exclusively for the plumbing trade and available from traditional plumbing wholesale distributors. The odorless, neutral-blue-colored penetrating sodium hydroxide high-foaming action lifts and pushes contaminants and oxides from sewer and waste lines. It clears blockages containing drain-clogging paper, rags, sanitary products, sludge, soap scum, fats, wood, hair, food and difficult-to-remove cooking grease. RectorSeal