DURABLE CONSTRUCTION :Made using durable, 304 stainless steel construction, this soap dispenser is built to supply long-lasting strength and use year after year. This material is also corrosion- and vandal-resistant, allowing it to be used in all types of environments without the material rusting or eroding away. SIMPLE UTILIZATION: This product works with most free-flowing, all-purpose hand soaps and features a push button with a valve for simple dispensing of the soap. It's also equipped with a clear window on the dispenser's front, so you can easily monitor the level of soap and refill when needed. HIGH-QUALITY PUMP: Equipped with a pump commercial soap dispenser with a spring mechanism that makes commercial soap dispenser super easy. TRANSPARENT RESERVOIR KNOB :Window indicates when refill is required to prevent unexpected depletion