The Sink Waste Coupling 3 inches is an indispensable plumbing fitting for the kitchen sink, crucially promoting proper drainage and limiting clogging.

It acts as a connecting pipe from the sink drain hole to the waste pipe, allowing the smooth passage of wastewater and food particles from the sink.

The 3-inch size is typically applicable to large kitchen sinks designed for heavy water flow and much use.

It generally comprises a top strainer or grid that does not allow big food particles into the drainage system. Below the strainer is a threaded body that securely connects to the sink hole with a rubber gasket and washer to form a leak-tight seal.

Some designs may also have a removable strainer basket that allows easy cleaning of trapped debris and sanitation of the kitchen.