Fernco's Flexible Donut are used by professionals nationwide. These high quality donut shaped rings are made of tough elastomeric polyvinyl chloride, they are strong, resilient and are formulated for use as a sewer joint material. These Flexible Donut are designed to provide several points of seal in order to accommodate possible irregularities in the pipe surfaces. These donut shaped rings are for compression sealing for sewer pipe joints and drain waste and vent connections such as sockets, hubs, bells and spigots. Because, fernco's donuts have earned a reputation for consistent, superior performance, you can have full confidence in their quality and reliability.
Eliminates the use of cement or mortar
Seals securely and flexes with ground movement
Quick and simple connection
Ideal for compression sealing drain, waste and vent connections, including sockets, bells and spigots
Formulated to compression seal cast-iron sewer pipe with the use of cement or mortar
Seals securely
Underground rated