🌿 Root out the competition with Roebic! Comes in a convenient 2-pack for double the protection. Simply flush down the toilet for maximum effectiveness. Keep your plumbing clear with yearly use. Specially formulated to eliminate existing roots and prevent new growth. Safe for surrounding trees and natural bacteria in septic systems. 2 lb pack No copper sulfate Flush application Roebic FRK Foaming Root Killer is a powerful 1-pound solution designed to effectively kill existing roots and prevent new growth. This eco-friendly formula is safe for your septic system and surrounding vegetation, making it the ideal choice for annual maintenance. With easy flush application and a value pack of two, you can ensure your plumbing stays clear and efficient.