Product Overview
The MSI Single Bowl 18G Drawn 2321 Stainless Steel Undermount Sink (Model: SINK-2321) is a specially contoured, large D-shaped single-basin kitchen sink engineered to maximize front-to-back bowl space. Formed from a single sheet of heavy-duty 18-gauge 304-grade stainless steel using a seamless drawn manufacturing process, this 23" x 21" sink provides extended 21-inch depth clearance from front to back, allowing large stockpots and sheet pans to sit flat inside the basin.
Designed for undermount installation, the 2321 model mounts flush beneath solid surface countertops such as quartz, granite, or marble—making countertop cleanup fast and seamless. Featuring a professional brushed satin finish, heavy protective undercoating, and sound-dampening pads, it effectively absorbs vibration and water noise while resisting everyday scratches, denting, and thermal shock.
Technical Specifications
| Technical Property |
Value / Specification |
Notes / Compliance |
| Manufacturer / Brand |
MSI (MS International) |
Kitchen & Bath Specialty Sinks |
| Model Number |
SINK-2321 / 2321 Undermount |
Contoured D-Bowl Single Basin |
| Material / Construction |
18-Gauge 304 Stainless Steel |
Seamless Drawn Construction |
| Installation Type |
Undermount |
Flush Countertop Cutout |
| Outer Dimensions |
Approx. 23" W x 21" L (58.4 cm x 53.3 cm) |
Extended Front-to-Back Depth Footprint |
| Inner Bowl Dimensions |
Approx. 21" W x 19" L x 9" D |
Deep D-Shape Clearance |
| Finish |
Brushed Satin |
Scratch & Water-Spot Masking |
| Drain Opening |
Standard 3.5" Rear-Centered Drain Hole |
Fits Standard Strainers & Disposals |
| Sound Insulation |
Heavy Sound-Dampening Rubber Pads & Spray Undercoating |
Absorbs Drumming & Vibration Noise |
| Recommended Minimum Cabinet Size |
27" to 30" Base Cabinet |
Ideal for Standard Kitchen Bases |
Recommended Applications
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Primary Kitchen Workstations: The extended 21-inch front-to-back dimension easily accommodates large frying pans, woks, and oversized baking sheets that struggle to fit in standard rectangular basins.
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Kitchen Islands & Compact Layouts: Provides the soaking volume of a large primary sink while occupying a compact 23-inch width along the cabinet line.
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Utility & Laundry Stations: Excellent for soaking garments, rinsing hardware, or handling heavy-duty household washing tasks.
Installation & Handling Guidelines
⚠️ IMPORTANT: UNDERMOUNT SINK INSTALLATION PROTOCOL
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Countertop Material Compatibility: Intended for solid surface materials such as quartz, granite, marble, or quartzite. Not recommended for laminate countertops unless specialized undermount support systems are installed.
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Fabrication Cutout Template: Always use the physical sink or official MSI 2321 cutout template to trace and fabricate stone countertop openings prior to installation due to its distinct curved D-bowl contour.
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Watertight Fastening: Secure the sink flange to the underside of the countertop using approved undermount mounting clips and brackets. Apply a continuous bead of 100% neutral-cure silicone sealant along the flange edge to guarantee a watertight seal.
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Standard Plumbing Opening: The rear-centered 3.5-inch drain opening fits all standard kitchen basket strainers, pop-up assemblies, and continuous-feed garbage disposals.
Care & Maintenance
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Routine Cleaning: Wash regularly with warm water, mild liquid dish soap, and a soft microfiber cloth or non-abrasive sponge. Always wipe parallel to the brushed satin grain lines.
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Avoid Harsh Chemicals: Do not use steel wool pads, wire brushes, chlorine bleach, or harsh acidic solvents, which can scratch the finish or compromise the steel’s protective oxide layer.
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Preventing Water Spots: Towel dry after use to prevent hard water mineral deposits and spot buildup.
Design Profile
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Aesthetic Inspiration: Modern Transitional, Commercial Gourmet, Compact Modernist, Contemporary Farmhouse.
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Visual Advantage: The curved back wall contour creates a unique architectural profile that maximizes usable internal depth without requiring a wider 30-inch cabinet base.
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Complementary Finishes: Pairs seamlessly with brushed nickel, stainless steel, or matte black pull-down faucets, light or dark quartz countertops, and natural wood cabinetry.
Frequently Asked Questions
What minimum cabinet size is required for the MSI 2321 sink?
The MSI 2321 undermount sink typically requires a minimum base cabinet width of 27 to 30 inches, with adequate front-to-back clearance inside the cabinet box for plumbing connections.
What is the advantage of a D-bowl shape compared to a standard rectangle?
A D-bowl curved shape extends further toward the back wall, providing extra diagonal and front-to-back room to rotate and scrub large handles, pots, and baking trays inside the basin.
Is 18-gauge stainless steel durable enough for daily kitchen use?
Yes. 18-gauge 304-grade stainless steel is the standard for high-quality residential sinks, providing excellent resistance to denting, rust, and thermal shock.
