A 20-ounce capacity reduces the need for replenishment. The unit is easy to mount to a wall or door. It’s designed to dispense hand sanitizer, hand soap, liquid detergent, lotion and other products.

Soapstand founders Andy Chou and Abner Tsai explain the method and thinking behind the company's automated liquid-refill stations. Launched in 2017, Soapstand operates units in four residential ...