The Zoeller Pump Company Unicheck Valve is a 6-inch cast iron (C.I.) flanged valve designed for reliable backflow prevention in wastewater applications. This valve features a sturdy construction that withstands high pressure and ensures long-lasting performance. Its flanged design facilitates easy installation and maintenance, making it a go-to choice for plumbing professionals. Compliant with industry standards, the Unicheck valve effectively prevents reverse flow, safeguarding your system from potential damage and ensuring optimal operation in various applications.