Member's Mark Power Packs Laundry Detergent delivers superior performance and great value in a quick, convenient detergent Power Pac. Just one Power Pac cleans one load of laundry. Member's Mark Power Packs are formulated with powerful cleaners and stain fighters to get your clothes clean and smelling fresh. The packs dissolve completely in all water types and are HE compatible, which means they are safe for any washing machine type. The convenient, easy-to-use design means no more measuring, no more drips and no more rinsing sticky detergent caps.