Durx® 670 flat mop replacement covers are designed to fit Berkshire’s Flat Mop Head Frame (BCR Mop 3) and are made from polyester/cellulose nonwoven material. All of Berkshire’s Flat Mop wiper covers are disposable and measured to fit the specific Mop Head system. More than one wiper can be attached to the mop head at a time. After mopping the area the outer wiper can be disposed of and the remaining wipers are ready for the next mopping phase. This guarantees a fresh wiper is used for each new phase, maximizing the efficiency of the cleaning.