FREE SHIPPING! Evolution Septic Assist Food Waste Disposer Created specifically for homes with septic systems, the Evolution Septic Assist delivers the new standard in sound and grind performance. ˇ MultiGrind Two grind stages let you quickly grind difficult food waste you wouldn't put in a standard disposer, like celery and potato peels. ˇ SoundSeal Makes the Evolution Septic Assist at least 40% quieter than standard disposers. - 40-Ounce Stainless Steel Grind Chamber and Grind ComponentHandles more volume than standard disposers. -Bio-Charge Injection Technology utilizes a natural microorganism to help break down food waste. -3/4 Horsepower Dura-Drive Induction MotorGives you more horsepower than standard disposers.