Infrared controlled AutoFlush ensures a flush every time. It helps prevent malodors, since it flushes away the odor source, leaving the fixture sparkling clean and odor free. AutoFlush requires four C alkaline batteries (included). It can easily be installed in minutes without shutting off the water supply and requires no tools to install or to change batteries. It can also work in conjunction with an AutoClean unit and Purinel Ultra Concentrated Cleaner to give continuous cleaning and scale prevention. AutoClean Service Starter Kits include a programmable dispenser (for 30, 45 or 60 days of cleaning), mounting hardware, two D alkaline batteries (for one year or more of operation), connection kit and stainless steel connection tube. They dispense convenient, easy-to-change, concentrated Purinel for round-the-clock elimination of odors at the source to ensue that urinals and toilets are always clean, odor free and presentable, providing greater hygiene for your restrooms and extended staff cleaning cycles. AutoFlush and AutoClean dispensers have a chrome-colored finish.