This Spears PVC DWV spigot adapter for cast iron pipe features hub x hub connections, providing a reliable transition between PVC DWV and cast iron systems in drain, waste, and vent applications. Designed for non-pressure use, it offers excellent corrosion resistance, smooth flow characteristics, and long-lasting durability. Manufactured to meet ASTM D2665, D1784, CSA B181.2, and NSF/ANSI standards.