Safe for all pipes, this overnight liquid clog remover contains a special ingredient that protects pipes against corrosion. Also safe for use with plastic, PVC, metal pipes, garbage disposals and septic systems. Won't harm pipes when used overnight. Chemicals/Cleaners Type: Drain; Application: Kitchen Sinks, Toilets, Tubs; Applicable Material: Metal, Plastic, PVC; Chemical Compound: N/A.
