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Karran 18 inch quartz undermount sink defines the bowl size and mounting style so installers can spec it accurately for bar or prep locations. The Karran brand and QX-680-CN part number identify it as a quartz sink in the Karran QX series, which helps match it with project documentation and ordering systems. The external bowl dimensions of 16-5/8 inches by 16-5/8 inches provide a clear footprint for planning cutouts and cabinet layouts around tight bar bases. Internal bowl dimensions of 14 inches by 14 inches by 8-1/4 inches describe the actual working space, which matters when sizing for pitchers, prep containers, or small pans. The quartz concrete construction defines the sink material, which is important when coordinating with surrounding tops and when evaluating performance needs in busy bar or prep environments.
The single bowl quartz undermount sink format sets it up for installation beneath solid-surface or stone tops, which keeps the counter surface uninterrupted for wiping down in bar or prep stations. The external bowl dimensions of 16-5/8 inches by 16-5/8 inches serve as the reference for cutout sizing and cabinet integration, which is critical when working with narrow bar cabinets or tight corner conditions. Internal bowl dimensions of 14 inches by 14 inches by 8-1/4 inches indicate how deep and wide the working area is, which helps match the sink to anticipated glassware, prep containers, or rinsing tasks. All external dimensions being approximate to 1/4 inch defines the expected tolerance, which matters when fabricators plan reveal, overhang, or flush-mount details around the rim.
The 18 inch wide quartz concrete single bowl design targets bar and prep sink use, so it fits naturally in secondary stations where a compact but functional bowl is needed. The Karran QX-680-CN part number ties directly to this model, which simplifies reorders or matching across multiple bar locations in the same project. With external dimensions of 16-5/8 inches by 16-5/8 inches, the sink suits smaller cabinet widths often found at bar runs, allowing designers to add water and cleanup capacity without giving up much base storage. Internal dimensions of 14 inches by 14 inches by 8-1/4 inches give enough depth and width for typical barware rinsing and light prep work, so installers can specify it confidently for service stations. The quartz concrete construction pairs with the matte finish surface, providing a consistent visual and tactile feel that aligns well with many countertop materials used in kitchens and bar areas. Because all external dimensions are approximate to 1/4 inch, the sink is suited to custom fabrication workflows where slight dimensional adjustment in templates and cutouts is normal.
The sink bowl surface having a matte finish affects both appearance and use, because it hides minor water spotting better than glossier surfaces and gives a uniform look under varied lighting in bar environments. The guarantee that the sink will not stain means the quartz material is engineered so common kitchen or bar substances do not easily discolor it, which supports a long-term consistent appearance even with dark beverages and food items. The guarantee that it will not crack from thermal shock directly addresses performance when hot and cold items move quickly in and out of the sink, which is common during service. Withstanding temperatures of up to 530 F gives a clear threshold for heat exposure, providing confidence when hot pots, pans, or other heated items contact the bowl. The 25 years Limited Warranty against manufacturer's defects replacement shows the manufacturer is backing the construction over a long period, which is meaningful in commercial or residential projects expected to stay in service for many years. All external dimensions being approximate to 1/4 inch gives installers a defined tolerance band, which helps avoid rework during countertop fabrication and final fitting when aligning the undermount sink to the cutout.
The Karran QX-680-CN sink has external bowl dimensions of 16-5/8 inches by 16-5/8 inches, which guides countertop cutout sizing and cabinet layout during planning and installation.
The sink provides internal bowl dimensions of 14 inches by 14 inches by 8-1/4 inches, offering usable space for barware, prep containers, and everyday rinse tasks.
The Karran quartz bar prep sink has a matte finish bowl surface, which creates a low-glare look and helps maintain a consistent appearance under different lighting conditions.
The quartz sink is guaranteed not to crack from thermal shock and withstands temperatures of up to 530 F, supporting use around hot cookware and rapid temperature changes.
The product is a single bowl undermount sink, so it is intended to mount beneath the countertop, providing a smooth wipe-down surface in bar and prep areas.
The Karran QX-680-CN sink carries a 25 years Limited Warranty against manufacturer's defects replacement, which supports long-term use planning in residential or commercial projects.
The Karran 18 inch quartz undermount sink with its 16-5/8 inch by 16-5/8 inch external bowl size and 14 inch by 14 inch by 8-1/4 inch internal bowl capacity offers a defined footprint and working space for bar and prep projects. Its quartz concrete construction, matte finish bowl surface, and ability to withstand temperatures up to 530 F create a work-ready station for busy locations. With a 25 years Limited Warranty against manufacturer's defects replacement and all external dimensions approximate to 1/4 inch, this QX-680-CN model is ready to be specified where a compact, durable undermount bar or prep sink is needed.
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