This is a detergent dispensing cartridge for Precision Dispensing washing machines. Keep a second cartridge on hand for special detergents, delicates and children's clothes. Evenly dispenses detergent throughout the fill process to clean better than adding detergent manually. Check your washer's Use and Care Guide to see if your washer is cartridge compatible. Hold enough detergent for up to 36 loads of laundry based on 6X concentration of HE detergent.