The Duplex Black 340 Brush is a durable and effective replacement brush designed for the Duplex 340 floor cleaning machine. It is designed to agitate and lift dirt, grime, and debris from various floor surfaces, including hard floors and carpets. Easy to install and replace, this brush ensures continuous and reliable cleaning performance. With its high-quality construction, the Duplex Black 340 Brush offers long-lasting durability for extended use. Please note that it is sold separately and is specifically designed for use with the Duplex 340 floor cleaning machine.