The BASEMENT SENTRY WATER POWERED BACKUP SUMP PUMP STWB140 by Zoeller is a reliable backup sump pump designed to protect your basement from flooding during power outages. This water-powered sump pump is made by Zoeller, a trusted brand known for their quality plumbing products. It is specifically designed to provide an extra layer of protection for your basement in case your primary sump pump fails or the power goes out. With this backup sump pump in place, you can have peace of mind knowing that your basement will stay dry even during emergencies.