High-capacity push-style foam soap dispenser., , High-capacity 2000 mL system needs refill changes less often, Large sight window makes it easy to check refill level, Uses PURELL FMX-20 2000 mL PURELL Brand HEALTHY SOAP refills, Collapsible, SANITARY SEALED PET refill bottle with removable collar for easy recycling, LOCK OR NOT technology - can convert to a locking system, ADA compliant, one-handed push operation, Guaranteed reliability