The Combined Sink Waste & Overflow Plastic 1-1/2in WSO51SS is a versatile and reliable sanitary waste fitting designed for domestic kitchen and utility sinks. Manufactured from durable, high-impact polypropylene with a polished stainless steel grid flange, this component provides an efficient drainage outlet while seamlessly integrating an overflow run to prevent accidental water spillage and sink overfilling.
 
Featuring a standard 1-1/2 inch BSP threaded connection, this assembly is engineered to fit standard kitchen sink outlets and connect smoothly to conventional trap systems. The kit includes a flexible or rigid overflow tube along with high-grade rubber gaskets and sealing washers, establishing an airtight and watertight seal against the sink body to protect surrounding cabinetry from leaks and moisture damage.
 
Ideal for both new kitchen installations and replacement projects, this combined waste unit resists corrosion, hot water thermal expansion, and common household cleaning chemicals. Its low-maintenance design and straightforward installation process make it an essential, professional-grade solution for plumbers and home improvers seeking long-term functional reliability.