The FERNCO 1056-33 is a 3" x 3" flexible PVC coupling manufactured by Fernco in the United States. This product is designed for use in various industrial applications, particularly in the fields of hydraulics, pneumatics, pumps, and plumbing. It is important to note that this coupling may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. As such, it is recommended to refer to the California Prop 65 Warning label for more information on the potential health risks associated with this product.