Brushed Stainless Undermount Sink for a Clean, Uninterrupted Counter
The Karran U-3018 is an 18 gauge stainless steel single-bowl undermount kitchen sink sized at 30-1/2 by 18-3/8 by 9-3/4 inches. Its extra-large single basin mounts flush beneath the countertop, keeping the work surface open and easy to wipe down from counter edge to edge.
Key Features
• 18 gauge stainless steel construction delivers solid, dent-resistant performance for daily kitchen use.
• Extra-large single bowl accommodates sheet pans, stockpots, and oversize cookware without a center divider in the way.
• Undermount installation positions the sink below the countertop so the counter surface wipes clean right to the edge.
• Soft satin brushed finish blends naturally with most kitchen hardware and resists visible water marks and fingerprints.
• 9-3/4 inch bowl depth gives plenty of clearance for tall items and reduces splashing during heavy-use tasks.
Where the Single Bowl Pays Off
An uninterrupted basin this size handles tasks that a divided sink cannot. Sheet pans lie flat on the bottom without tipping against a divider. Large stockpots fill and drain without awkward angling. For kitchens where soaking, scrubbing big cutting boards, or bathing a pet are regular events, the single bowl turns those jobs from frustrating to straightforward. The 30-1/2 inch footprint fits a standard 33 inch or wider sink base cabinet, making it a practical replacement in most existing kitchen layouts as well as new builds.
Construction and Finish Details
The U Series is Karran's 18 gauge conventional stainless line, and the U-3018 carries a soft satin brushed finish consistent across the bowl and rim. The 18 gauge steel is thick enough to absorb vibration and handle heavy cookware without flexing noticeably. Undermount installation suits this sink to quartz, granite, and solid surface countertops, where the finished countertop edge becomes the focal point and no visible rim collects grime. Because the U-3018 has no faucet deck, the faucet and any accessories mount through the countertop behind the bowl.
A Good Match For
This sink suits homeowners replacing an older divided-bowl sink who want more usable basin space without changing the cabinet footprint. It works equally well in a kitchen renovation where a designer is specifying a clean, rimless look in stone or solid surface. Cabinet shops building sink bases for residential clients will find the 30-1/2 inch overall width slots into the standard 33 inch base cabinet opening with comfortable clearance. For contractors sourcing stainless sinks in volume, the U-3018's straightforward undermount installation fits a broad range of countertop materials and keeps the installation path predictable across multiple job sites.
Does the U-3018 include mounting clips or a template?
The U Series installation path requires clips and, depending on the countertop material, a template or layout guide. Neither clips nor a template is listed as included with this sink. Check with your countertop fabricator or installer for the clip and cutout method appropriate to your countertop material.
What countertop materials work with this sink?
The U-3018's flat undermount rim is suited to quartz, granite, and solid surface countertops where the sink attaches from below and the countertop edge is finished. It is not a seamless-series sink and does not install by the laminate seamless method.
Where does the faucet mount on this sink?
The U-3018 has no integral faucet deck, so the faucet mounts through the countertop. Plan faucet hole placement with your countertop fabricator before the cutout is made.
Is a drain or basket strainer included?
A drain assembly and basket strainer are not listed as included with the bare U-3018 SKU. Order a compatible 3-1/2 inch basket strainer and drain separately before installation.
One Sink, One Basin, Fewer Compromises
The U-3018 trades the divider for depth and open workspace, giving any countertop a clean, professional look and the kind of daily utility that makes a kitchen easier to use every time.
