Clean, attractive & reliable. The first and only automatic through-the-counter soap system. Assists Maintenance Staff: New pump and delivery tube with every refill eliminates costly repairs and replacement parts. Always works - no more clogs and drips means no messy cleanup. Reduces labor to change cartridges, with up to 1000 hand washes per refill (with 800mL refill) and 2000 hand washes (with 1600mL refill). Disposable soap refills with easy "quick-twist" loading. Dispenser fits existing 1" (one inch) opening for easy installation.