This strainer is specifically designed to fit the unique CASK sinks with square drains. Sized at 1.8" wide at the mounting point and 4.5" at the lip ensures a snug fit and easy installation. Made from durable stainless steel to ensure a long lifespan. 

Specifications

• Square Drain Kitchen Sink
• Width at Top: 4.5"
• Width at Base: 3.5"
• Depth: 2.9"
• Warranty Period: One Year
• Materials: Stainless Steel
•   Specification Sheet
•   Installation Instructions
•   Revit File - 2016
•   Revit File - 2017