The Zoeller Sewage Pump System M803 features a robust 24x24 inch design with a 1.25 inch diameter check valve and alarm system. This pump is engineered for efficient sewage management, ensuring reliable operation in residential and commercial applications. Constructed from high-quality materials, it meets ANSI standards for safety and performance. The system includes a built-in alarm to alert users of any operational issues, enhancing safety and reliability. Ideal for underground installations, this pump is compatible with various sewage systems, making it a versatile choice for any plumbing setup.