American Standard Portsmouth® 31-7/16 x 20-7/16 in. Stainless Steel Double Bowl Undermount Kitchen Sink


  • Premium 18 guage stainless steel
  • Undermount installation for a custom look
  • Offset double bowl sink
  • Includes 2 drains
  • Includes installation hardware, cutout template and instructions
  • Requires 36" cabinet
  • Equipped with SoundSecure+™ rubber sound pads on the bottom and sides of your sink for extra protection against unwanted noise and vibration
  • Features StoneLock™ multi-layer spray insulation to help with sound absorption and to minimize condensation on the underside of your sink
  • Requires bottom grids for each bowl
  • Left bowl size: 15-1/2" x 18-5/8" x 9"

Number of Holes:

No Hole
ADA Compliant No
Application Residential
Collection Portsmouth®
Depth 9 in
Gauge 18
IAPMO Listed Yes
Number Of Bowls 2
Number of Holes No Hole
Right Bowl Size 16-3/8 in x 7-1/2 in
Shape Rectangular
Sink Bowl Size 29-41/100 in x 18-43/100 in x 9 in
Sink Installation Type Undermount
Sink Material Stainless Steel
Sink Size Range 31 in - 35 in