Clean Architectural Symmetry: Franke Kubus 43″ Undermount Double Bowl Sink

Anchor your high-volume culinary workstation or expansive kitchen island with the crisp, modern execution of the Franke Kubus Series 43-Inch Undermount Double Bowl Stainless Steel Sink (KBX12043). Expertly engineered for serious home chefs, busy families, and design purists, this premium estate-sized basin system features a striking, clean-lined aesthetic highlighted by geometric tight-radius corners. Beautifully formed from industrial, heavy-duty 18-gauge Stainless Steel and finished in a resilient, polished satin sheen, its deep double-bowl configuration delivers massive basin volume to effortlessly swallow commercial-grade baking sheets, oversized stockpots, and cast-iron skillets. Designed to mount completely out of sight beneath quartz, granite, or solid-surface stone countertops, this 43-inch focal point maximizes your usable workspace while maintaining a sleek, uninterrupted counter facade.

Designer Features & Master-Tier Performance

Engineered for those who appreciate premium acoustic dampening, minimal geometric lines, and heavy-use durability in high-traffic wet zones, this flagship Kubus Series undermount double-bowl sink includes:

• Sprawling 43-Inch Double Bowl Matrix: Offers exceptional multi-tasking real estate split between an expansive 21-5/8″ main prep basin and an adjacent 17-3/4″ rinsing basin, letting you wash and sanitize large sets of cookware simultaneously.
• Modern Tight-Radius Corners: Re-engineers traditional rounded bowls with sharp, minimalist vertical lines and tight corner parameters, maximizing horizontal base surface area while projecting a crisp, contemporary layout.
• Intelligent Off-Center Rear Drain Engineering: Positions both drain outlets near the back of the bowls, drastically increasing the usable flat floor space for stacking delicate stemware while preserving valuable plumbing storage room in the cabinet below.
• Quiet-Glow Sound Dampening Framework: Equipped with a comprehensive, heavy-duty sound-absorbing pad network and an advanced acoustic spray-coated underbelly that minimizes metallic vibrations, water echoes, and disposal hums.
• Premium 18-Gauge Stainless Steel Build: Premium chromium-nickel steel construction delivers excellent resilience against daily impact denting, thermal shock cracking, and surface scratching.
• Flawless Undermount Profile Integration: Creates a continuous, hygiene-friendly path from your stone countertop directly into the sink basin, eliminating raised rim lips where crumbs, grease, and moisture can gather.
• The Secondary Market Sustainability Advantage: Acquiring this pristine open box luxury architectural asset prevents premium raw metals from entering high-strain refinery cycles, immediately elevating your property infrastructure while supporting eco-conscious, zero-waste home renovation standards.

Technical Specifications

• Brand / Collection: Franke Kitchen Systems / Kubus Series
• Model Category: 43″ Undermount Double Bowl Sink
• Model Number: KBX12043
• Overall Dimensions: 42 1/16″ L x 17 15/16″ W
• Left Basin Dimensions (Large Bowl): 21 5/8″ L x 17 15/16″ W x 9 1/16″ D
• Right Basin Dimensions (Small Bowl): 17 3/4″ L x 17 15/16″ W x 9 1/16″ D
• Material Thickness: Heavy-Duty 18-Gauge Stainless Steel
• Finish: Premium Polished Satin Stainless Steel
• Installation Minimum Cabinet Base Width: 48 Inches Recommended
• Drain Infrastructure: Rear-Positioned Outlets (Basket strainers sold separately)
• Acoustic Defense: Sound Pads + Bottom Spray-Coated Core
• Source: Open Box

The Franke Kubus 43-inch Undermount Double Bowl Stainless Steel Sink is the definitive choice for the modern kitchen curator who demands immense basin scale, crisp minimalist lines, and robust acoustic performance within an integrated under-counter footprint. Its combination of off-center rear drains, heavy-gauge 18-gauge steel, and sound-insulated walls ensures your food prep zone remains as functionally superior as it is visually spectacular.