Sewer & Drain Cleaners – Non-Acid, Septic Safe

Shop Red Crown sewer and drain cleaners — non-acid formulas that rapidly dissolve grease, hair, soap scum, and organic blockages in residential and commercial drains.

Red Crown Firewater liquid drain opener uses potassium hydroxide for fast action in kitchen and bathroom drains — safe for septic systems when used as directed. Red Crown Clog Destroyer tackles severe main line blockages with a high-strength sodium hydroxide formula — for main line and outdoor drains only, not recommended for septic systems.

Trusted by homeowners, plumbers, and facility managers. Ships via UPS Ground to the 48 contiguous states.