Quartz Composite Sinks Unsurpassed Scratch Resistance – Hard As Stone Heat Resistance To 536°F Stain Resistant & Non-Fading, Even In Sunlight Sealed Surface Assures Low Maintenance Hybrid – Top Mount & Under Mount Q4222D Q4019D S3318DSP S3320LSP Q1717S S3318SSP S2518SSP « Solid Surface Sinks