Pure Power Laundry Detergent is concentrated and economical, biodegradable, and phosphate free. Most importantly, it cleans clothes best. This concentrated powder detergent is toughest on stains, ground-in dirt, and dulling gray. Pure Power Laundry Detergent is available in a 20-lb pail for maximum convenience. Only a half-scoop (1/4 cup) of Pure Power is required for a full load of laundry. That's a lot of clean clothes from one 20-lb pail! Pure Power is pure value!