Introducing the InSinkErator Evolution Septic Guard garbage disposal, the ultimate solution for your kitchen waste disposal needs. This advanced model is designed to offer superior performance and convenience. Safe for use with properly maintained septic tanks, the InSinkErator Boost™ Injection System automatically injects Septic Guard twice a day to support the digestion of solids, reduce sink odors, and minimize food waste build-up in your septic system and pipes. EZ Connect Cord Sold Separately.