High-capacity dispenser is ideal for high-traffic areas. Smart Electronics technology minimizes energy use per actuation, eliminating the need to change batteries over the life of the system in most installations. Large-sight window and clear refill bottles make it easy to check the fill status. Controlled-collapse PURELL refills (sold separately) hold their shape as they empty for a more attractive appearance. Sanitary-sealed refills are made of durable, recyclable PET material, using 30 percent less plastic than rigid HDPE bottles.