Stepped couplings are designed to connect pipes with different diameters. The stepped coupling is suitable for steel, PVC, ductile iron, asbestos cement, FRP, cast iron, and concrete pipes. It's processed with Fusion bonded epoxy coating, which is suitable for potable water. 
The products could be coated with blue, black, red epoxy or according to customer requirements.

Item No.	Item Name	Material
1	Sleeve	Ductile Iron
2	End Ring	Ductile Iron
3	Gasket	Rubber
4	Bolt	Galvanized Steel
5	Washer	Galvanized Steel
6	Nut	Galvanized Steel
7	Cap	Plastic

Please contact us for more detail , package,delivery time and shipment.