Small, 700 ml dispenser is ideal for tight spaces. Large sight window, skylight and crystal-clear refill bottles (sold separately) make it easy to check fill status. ADX-7 Manual Foam Soap Dispenser converts to a locking dispenser at any time by simply removing the key from inside the dispenser. Patent-pending, controlled-collapse refill bottles hold their shape as they empty for a more attractive overall appearance. Removable pump makes recycling easy. Sanitary-sealed refills are made of durable, recyclable PET material, using 30 percent less plastic than rigid HDPE bottles. Dispenser is fully ADA compliant.