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). The environmentally friendly formula contains no heavy metals, phosphates, or dyes. It removes everyday dirt and leaves 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 both mop and pick up dirt at the same time. 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. Regularly clean and check your filter to ensure optimal performance of your CrossWave. The filter is easy to install and replace. Replace the filter every 6 months depending on usage.