This original Bissell CrossWave multi-surface accessory set includes 2 liters of multi-surface floor cleaner, 1 multi-surface brush roll, and 1 filter. It has been specifically designed for CrossWave models 17132, 2225N, 2582N, and 25821. The multi-surface cleaner is safe for pets and children (when used as directed). Its eco-friendly formulation contains no heavy metals, phosphates, or dyes. It removes everyday dirt, leaving hard floors and carpets clean, fresh, and with a hint of spring fragrance. The dual-function multi-surface brush roll features innovative microfiber and nylon bristles that mop floors while simultaneously picking up dirt. The brush roll is easy and quick to replace. With proper maintenance, the filter reduces the release of dust, pollen, and other allergens after capture. Clean and check your filter regularly to ensure optimal performance of your CrossWave. The filter is easy to install and replace. Replace the filter every 6 months depending on usage.