Amazon.com: Root Destroyer – 2lbs of Pure Copper Sulfate Crystals - Root Killer for Sewer & Pipe Lines- Stops New Growth – Safe for all Plumbing : Health & Household
Amazon.com: FOAMING Root Killer | 10 Pound| Kills Tree Roots in Pipes & Sewer Lines | Contains No Copper Sulfate : Patio, Lawn & Garden