A Karran Quartz Undermount Sink Built for a Clean White Kitchen

The Karran Q-340-WH is a single-bowl quartz undermount kitchen sink in White, sized to mount beneath laminate, solid surface, or granite countertops in a 33-inch or wider base cabinet.

Key Features

• Single-bowl undermount design keeps the counter surface uninterrupted above the basin.
• Quartz composite construction with a matte White finish that holds its color across years of kitchen use.
• Compatible with laminate, solid surface, and granite countertops for broad countertop pairing options.
• Generously deep 9-inch bowl interior with 28-3/8 by 16-3/8 inches of interior working space.
• 3-1/2 inch drain opening sized for standard kitchen basket strainers and disposal flanges.
• cUPC and IAPMO certified, meeting plumbing code standards for residential kitchen installation.

The Case for a Single Bowl in White

A single bowl clears the deck for large-format work: sheet pans, stock pots, and oversized cutting boards drop in without a divider getting in the way. This sink pairs that open interior with a White finish, a natural match for white or light-toned cabinetry, bright subway-tile backsplashes, and white or off-white solid surface countertops. The undermount installation pulls the countertop edge right to the rim of the bowl, so wiping crumbs and prep debris straight into the sink takes one clean motion.

Quartz Composite Body and Matte White Surface

Karran builds the Q-340 from quartz composite, a dense material that brings more heft and mass to the basin than stainless steel at the same size. The matte White surface resists showing water marks and light surface scuffs the way a high-gloss finish would not, and the consistent color runs through the material rather than sitting as a coating on top. The sink carries cUPC and IAPMO certifications, confirming it meets the plumbing code requirements that inspectors check on permitted kitchen remodels.

Where This Sink Fits Best

This is the right sink for a kitchen remodel or new build where the countertop is being fabricated new. Because it is an undermount, it is designed for a new countertop rather than retrofitting into an existing cutout, and it needs a base cabinet with at least 33 inches of width to land correctly. It works in laminate, solid surface, or granite countertops, which makes it a practical choice for a wide range of budget levels. Designers specifying a bright, cohesive kitchen palette and cabinet shops outfitting white-kitchen packages will find the White finish integrates cleanly without requiring a finish match to hardware or appliances.

Common Questions

One Sink, One Color, Clean Result

The Q-340-WH delivers a deep single-bowl quartz undermount in White, certified for residential installation, and ready to anchor a bright kitchen with minimal visual clutter at the sink.