Cygneture series hand fabricated 16 gauge sinks now feature PerfecFlo technology on some models. PerfecFlo sinks have an increased slope on the bottom of the sink to enhance draining. No more wiping or squeegeeing that is typical with large hand fabricated sinks, No pressing or stretching is used in the fabrication process. 100% hand fabricated from 304 18/10 16 gauge stainless steel. All sinks are fully undercoated and padded for noise reduction. IAPMO certified UPC and C-UPC compliant.