ProSource 4 in. x 3 in. Flexible Hub Donut

The ProSource 4 in. x 3 in. Flexible Hub Donut provides a reliable compression seal for sewer pipe joints and DWV connections including sockets, bells, hubs, and spigots. Designed for durability and straightforward installation, it ensures a secure fit in non-pressurized gravity-flow drainage systems. Constructed from resilient PVC material, this hub donut delivers dependable performance for drain, waste, and vent applications. It is engineered to meet rigorous industry standards and is not intended for use on pressurized plumbing systems.