A Compact Undermount Sink Built for Real Kitchen Work
The Karran Select Series SU73-PK1 is a 16 gauge stainless steel undermount kitchen sink designed for smaller installations where a thick, durable bowl is the priority. This single bowl kit arrives ready to install, with basket strainer, bottom grid, and Luster Pro oil included in the box.
Key Features
• 16 gauge stainless steel construction delivers a noticeably thicker bowl than standard 18 gauge sinks, with less flex and a quieter feel under use.
• Tight-radius corners give the bowl a squared, contemporary look that suits modern and transitional cabinetry alike.
• Undermount installation positions the sink beneath the countertop for a clean, wipe-flush counter edge with no rim to trap debris.
• -PK1 kit includes a stainless basket strainer, bottom grid, and Luster Pro oil so the install can proceed without hunting for accessories.
• Single bowl configuration keeps the full interior open for washing large cookware or a cutting board flat on the grid.
Where This Sink Fits the Job
At just over 21 inches in length, this bowl works where a full 30 or 33 inch sink simply won't go. Island additions, secondary prep stations, butler's pantries, and compact apartment kitchens are natural fits. Cabinet shops and installers often reach for this size when a client is working with a narrow base run and needs a full undermount experience without sacrificing bowl depth. The 8-1/4 inch depth keeps everyday washing comfortable without demanding extra cabinet clearance below.
Material, Build, and Finish
The Select Series SU73 uses 16 gauge Type 304-class stainless steel throughout the bowl, which puts it in the same construction tier as the Elite and SU line rather than the thinner 18 gauge options common at this price point. The brushed satin interior surface resists visible surface scratches from daily use and is straightforward to clean. Tight-radius corners contribute to the contemporary profile and make wiping out the bowl corners easier than rounded interior walls allow. The overall finish is consistent and neutral, coordinating with most faucet and hardware finishes without drawing attention to the sink itself.
The Right Buyer for This Bowl
Homeowners finishing a compact kitchen renovation get a professional-grade bowl without the cost or footprint of a larger model. Designers specifying a secondary sink station in a high-end kitchen find that 16 gauge construction holds its own next to premium countertop materials. Cabinet shops ordering for production installs benefit from the kit format: one SKU covers the sink, the strainer, the grid, and the care product, which keeps receiving and staging straightforward on tighter project timelines.
Frequently Asked Questions
Does this sink require a special template for the countertop cutout?
Karran Select Series sinks do not include a paper template. Use the actual sink as the cutout guide, or download a DXF file for CNC work if your fabricator supports it. Have the physical sink on hand before cutting.
What is the minimum cabinet size this sink requires?
Because the overall length is 21-1/4 inches, this sink fits into cabinet widths that a 30 or 33 inch bowl cannot. Verify the specific minimum cabinet width against the Karran spec sheet for the SU73 before ordering if your base cabinet is unusually narrow.
Is the drain assembly included in the kit?
The -PK1 kit includes a stainless steel basket strainer, which serves as the drain fitting for the bowl. A separate drain tailpiece and p-trap are needed to complete the plumbing connection beneath the cabinet.
Will this sink work under a granite or quartz countertop?
Yes. The Select Series SU73 is a conventional undermount sink and installs beneath granite, quartz, and solid surface countertops using the countertop fabricator's standard undermount method. It does not use Karran's seamless integration process, which is specific to the Q and Edge Series.
What does Luster Pro oil do, and how is it used?
Luster Pro is Karran's stainless care product included with the kit. Applied periodically to the bowl interior, it helps maintain the brushed finish and reduces water spotting over time.
A Compact Bowl That Doesn't Compromise on Build
The SU73-PK1 delivers 16 gauge Select Series quality in a size that opens up installations a larger sink forecloses, shipped as a complete kit so the job moves without waiting on accessories.
