Check the listing for details. FRK-1LB Foaming Root Killer, Clears Pipes and Stops New Growth, Safe for All .... Condition: New, Made in China. Listed at 23.95 USD. KILLS ROOTS IN SANITARY SEWERS: Roebic FRK-1LB Foaming Root Killer kills roots in sanitary sewers and is recommended for severe recurring root problemsFOAMS ON CONTACT: Exclusive Roebic Root Killer formula, which does not contain copper, foams on contact with water to fill the entire pipeline with the root killing agent dichlobenil to inhibit new root growthSAFE FOR ALL PLUMBING: Foaming Root Killer is safe for all types of plumbing and will not harm surrounding treesEASY TO USE: The granular contrate has multiple application methods, including residential sewer lines, and between tree roots and sewer linesREAL RESULTS: Use Foaming Root Killer to maintain your system and help avoid the inconveniences that result from root clogs such as back-ups and surface break outs Product Description Safe for all types of plumbing, Roebic FRK-1LB Foaming Root Killer clears roots from pipes and stops new root growth. The exclusive product, which does not contain copper, foams on contact with water to fill the entire pipeline with the root killing agent dichlobenil to destroy roots that find their way into in a home's sewer line, which can cause costly backups. Foaming Root Killer is recommended for severe recurring root problems. To use, follow directions as listed for your application method, including for use in residential sewer lines, and between tree roots and sewer lines. Roebic FRK-1LB Foaming Root Killer is banned for use in septic systems in the state of Florida due to state regulations, and is not for sale outside the contiguous U.S. For over 50 years, Roebic has developed high quality products engineered for optimum performance, targeting specific problems and troublesome areas within the septic system. Trust Roebic, The Septic Professionals, for all your septic and drain care needs. From the Manufacturer Foaming Root Killer is a new patented product which foams on contact with water to fill the entire pipe line with the root killing agent dichlobenil. Foaming Root Killer is recommended for severe recurring root problems. Not for sale out of the contiguous U.S. Banned for use in septic systems in Florida due to State Regulations.