Liquid-Plumr Thick Liquid Drain Opener
Liquid-Plumr Full Clog Destroyer is your 3-in-1 powerhouse for maintaining drains. Not only does its thick gel help clear the clogs you have, it prevents new clogs from forming and keeps pipes smelling fresh.
This drain cleaner is safe for all septic systems and pipes, including PVC, plastic, copper, and old pipes. (from Liquid-Plumr)
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