Check the listing for details. 2 x 1-1/2-Inch Cast Iron Hub Donut. Listed at 22.31 USD. Our eBay Store Contact Us Add to Favorite Sellers 2 x 1-1/2-Inch Cast Iron Hub Donut 2" x 1-1/2" Cast Iron Hub Donut, Connects 2" Service Weight Cast Iron Pipe To Plain End Of 1-1/2" DWV Schedule 40 Plastic Pipe. 2" x 1-1/2" cast iron hub donut, connects 2" service weight cast iron pipe to plain end of 1-1/2" dwv schedule 40 plastic pipe. Fernco donuts are flexible PVC donut-shaped rings for the compression sealing of sewer pipe joints and DWV connections such as sockets, hubs, bells and spigots. They offer all of the properties necessary to create a strong, lasting joint. K Hardware Stores is made up of 4 True Value Hardware Stores that have been in business for over 100 years. K Hardware understands customer service & quality products. Let us help meet your needs while in the comfort of your own home.