Liquid-Plumr Industrial Strength Liquid Drain Cleaner
Patented gel is the most powerful to penetrate and dissolve clogs. Works fast to clear fully clogged drains with standing water and slow drains. Removes hair, gunk, grease, and soap scum. Safe for all pipes (PVC, plastic, copper, old pipes), septic systems, and garbage disposals. Contains no phosphorus. 128 oz.