2" x 1-1/2" no hub coupling for no hub systems, couplings shipped as assembled units, stainless steel corrugated shield & clamps assembled over a molded piece neoprene sealing sleeve, no hub couplings are used to join cast iron pipe & fittings.
4" No Hub Coupling has a patented shield design that provides maximum transfer of pressure from the clamps-to the gasket-to the pipe. Engineered to connect no-hub cast iron pipe in applications replacing the less-efficent hub and spigot.
3" x 1-1/2" reducing size donut, for cast iron to schedule 40 plastic. 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.
