From the manufacturer: The CP-22 is suitable for use with condensate from HVAC systems including high efficiency furnaces and humidifiers, including for acidic condensate. This rugged pump has 22 feet of lift, compared to the typical 18 - 20 feet. The CP-22 has a number of features and benefits including vibration dampening feet and motor mounts, metal hang tabs, four versatile inlet holes, an easy to understand indicator display, a simple float switch and check valve. Integrating the CP-22 into your system is easy. 1/4" inch quick connect terminals provide easy connection to the built-in overflow switch. Two terminals are provided allowing the installer flexibility to connect air handler shut-down. Switch features SPDT isolated contacts ready for connection to building automation systems. 30cm L x 15cm W x 20cm H Weight = 5 lbs Max. flow rate = 1.6 gallons per minute Max. lifting height = 22 feet Used from Dec. 2022 to April 2023 (5 months) for an HE gas furnace, then not used at all because that gas furnace was eventually totally replaced. Lightly used and In excellent condition. Ratings on Ama z on for this model are excellent.