These Deluxe Microfiber Replacement Mop Pads (4 pads) fit all Bissell Steam Mop 18677 series and 31N1 series models. These deluxe replacement steam mop pads are thicker and more durable than standard mop pads. They are easy to change and attach, machine-washable, and reusable. Use the microfiber pads with your steam mop to clean hard-floor surfaces safely. Model #42G3A .