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KRAUS 33" Undermount 50/50 Double Bowl Black Onyx Granite Kitchen Sink - KGU-434B

KRAUS 33" Undermount 50/50 Double Bowl Black Onyx Granite Kitchen Sink - KGU-434B

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KRAUS 33" Undermount 50/50 Double Bowl Black Onyx Granite Kitchen Sink - KGU-434B

KRAUS undermount granite sinks create an instant style upgrade for the kitchen. Constructed from 80% natural granite, with the look and feel of real stone, these modern kitchen sinks look striking in a variety of settings. Clean lines and thoughtful design details highlight the organic elegance of granite, for an eye-catching look with contemporary appeal. The extra-deep basins accommodate large dishes with ease, while the gently rounded corners make sink maintenance simple. Each non-porous, naturally hygienic sink is protected with a thermal finishing process, creating a surface that is highly resistant to heat, chemicals, scratching, chipping, and discoloration. This double bowl sink provides a lifetime of functionality with refined style. The 50/50 split basin adds flexibility for a variety of kitchen tasks. For added convenience, a basket strainer drain assembly and complimentary towel are included free with purchase. Constructed from premium stainless steel, the top-quality basket strainer assembly creates a tight seal to prevent food and debris from clogging the drainpipe. For easy installation, all mounting hardware is provided. Experience KRAUS Quality and bring your best kitchen ideas to life.

    What our Experts Think
    • Balanced double-bowl versatility: The KRAUS KGU-434B features a 50/50 split dual basin design, ideal for multitasking—wash on one side, rinse or prep on the other without cross-contamination.
    • Durable granite composite build: Made from ~80% natural granite, it delivers a stone-like feel with strong resistance to scratches, chips, heat, and discoloration for long-term kitchen use.
    • Premium Black Onyx finish: The deep black surface adds a modern, high-contrast aesthetic that pairs well with both light and dark countertops while helping hide everyday stains.
    • Deep, functional basins: Extra-deep bowls comfortably handle large pots, pans, and baking trays, making it practical for heavy cooking households.
    • Hygienic & easy to maintain: The non-porous surface resists bacteria buildup and simplifies cleaning with basic soap and water.
    • Quiet, stable performance: Dense composite material naturally reduces noise from dishes and running water compared to stainless steel sinks.
    • Smart installation design: Undermount configuration creates a seamless countertop transition, allowing easy wipe-downs directly into the sink.
    • Expert verdict: A strong choice for homeowners wanting a durable, stylish, and highly practical double-bowl sink that improves kitchen workflow without sacrificing modern design.
    Q&A

    Q: What material is the sink made of?
    A: It is made from ~80% natural quartz granite composite with acrylic resin for strength and durability.

    Q: What type of installation does it use?
    A: Undermount installation for a seamless, modern countertop finish.

    Q: What does 50/50 double bowl mean?
    A: It features two equal-sized bowls, allowing multitasking like washing and rinsing simultaneously.

    Q: How durable is the granite composite?
    A: Highly resistant to scratches, stains, heat, and chipping, designed for long-term kitchen use.

    Q: Is the surface easy to clean?
    A: Yes, the non-porous surface prevents buildup and allows easy wiping with mild soap and water.

    Q: Does it help reduce noise?
    A: Yes, the dense granite composite naturally absorbs sound for quieter dishwashing.

    Q: What are the sink dimensions?
    A: Approximately 32.5” L × 18.9” W × 9.5” bowl depth, designed for a 36” minimum cabinet.

    Q: What is the sink color?
    A: Black Onyx, a deep stone-like black finish that hides stains and complements modern kitchens.

    Q: Does it include accessories?
    A: Yes, typically includes drain assemblies, mounting hardware, cut-out template, and cleaning towel depending on retailer.

    Q: What kitchen size is it best for?
    A: Ideal for medium to large kitchens that need dual-basin functionality with a premium stone look.

    Maintenance Tips
    • Clean daily with mild dish soap + warm water and a soft sponge to preserve the deep Black Onyx finish.
    • Avoid bleach, ammonia, vinegar, and abrasive scrubbers to prevent surface dulling or damage.
    • Rinse and wipe dry after each use to reduce water spots, limescale, and streaking on dark surfaces.
    • Use a sink grid or basin rack to protect against scratches from heavy cookware.
    • For stains or residue, use a baking soda paste or granite-safe cleaner, then rinse thoroughly.
    • Avoid leaving standing water, salt, or acidic food waste for long periods.
    • Clean food debris promptly to maintain the non-porous, hygienic granite composite surface.
    • Do not use high-heat cookware directly in the sink to avoid thermal stress over time.