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ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 1
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 2
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 3
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 4
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 5
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 6
ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink - image 7
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ALFI AB1720UM Undermount Rectangular Granite Composite Kitchen Prep Sink

$590
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Estimated delivery: Oct 29 – Nov 3

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Key Specifications

Installation Type

Undermount

Key Features

Granite Composite

Durability and elegance

Italian Design

Aesthetic sophistication

Thermal Resistance

Withstands extreme temperatures

CUPC Certification

Plumbing standards compliance

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The ALFI AB1720UM undermount kitchen sink combines Italian-designed elegance with durable granite composite construction for a low-maintenance, high-performance food preparation center.

Italian-Designed Culinary Centerpiece

Crafted with meticulous attention to detail in Italy, the ALFI AB1720UM undermount sink brings European sophistication to your kitchen. This rectangular granite composite sink features clean lines and a modern aesthetic that seamlessly integrates with various kitchen styles, from contemporary to traditional. The undermount installation creates a sleek, seamless look with no rim interrupting your countertop surface, making cleanup effortless as you can wipe debris directly into the sink.

Exceptional Durability and Strength

Constructed from premium granite composite material, this kitchen prep sink offers remarkable resistance to scratches, stains, and impacts. The non-porous surface prevents bacterial growth and eliminates concerns about chipping or cracking that can occur with traditional materials. Unlike stainless steel, the granite composite finish doesn't show water spots or fingerprints, maintaining its elegant appearance with minimal effort.

Superior Thermal Performance

Engineered to withstand severe thermal shocks and very high temperatures, the ALFI sink remains undamaged by sudden temperature changes that would compromise other materials. This thermal resistance makes it ideal for busy kitchens where hot pots and pans are frequently placed directly in the sink. The material retains heat moderately, helping to maintain water temperature during food preparation tasks.

Optimized Dimensions for Food Preparation

With exterior dimensions of 16 1/8" x 17" x 8 1/4" and a generous inner bowl measuring 13 3/8" x 15 3/4" x 7 3/4", this sink provides ample space for washing vegetables, cleaning cookware, and handling other kitchen tasks. The rectangular shape maximizes usable space while fitting standard cabinet configurations, requiring a minimum cabinet size of 16 1/8 inches.

Simplified Installation Process

The ALFI AB1720UM includes complete undermount installation hardware for straightforward mounting beneath your countertop. For optimal fit, we recommend a countertop cutout of 13 5/16" x 15 11/16" with a 3/16" corner radius. The undermount design not only enhances visual appeal but also increases usable counter space by eliminating the rim that typically occupies valuable workspace.

Certified Quality and Compliance

This kitchen sink carries the Uniform Plumbing Code (cUPC) certification, ensuring it meets rigorous standards for material safety and performance. The certification provides assurance of quality construction and compliance with North American plumbing standards. While the drain is not included, we recommend the ABST35 model for optimal compatibility and performance.

Effortless Maintenance and Cleaning

The non-porous granite composite surface resists staining from common kitchen substances including coffee, wine, oil, and vinegar. Daily cleaning requires only mild soap and water, while occasional use of a non-abrasive cleaner will maintain the sink's lustrous appearance. The material's inherent resistance to scratching means you can use it confidently for all your food preparation needs without worrying about surface damage.

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SpecificationValue
DimensionsExterior dimensions of the sink
16 1/8 x 17 x 8 1/4 inches
Installation TypeMethod used to install the sink
Undermount
Minimum Cabinet SizeMinimum size of cabinet required to install the sink
16 1/8 inches

Product identifiers

SKUAB1720UM-B
GTIN811413023612

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Customer Reviews

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Beyond the reviews — we'll share what owners love and the trade-offs to know.

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Kitchen sinks are commonly made from stainless steel, porcelain, granite composite, and acrylic. Each material offers different benefits in terms of durability, ease of cleaning, and aesthetic appeal.

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The size of your kitchen sink should be proportionate to your kitchen size and countertop space. Consider the depth, width, and number of basins based on how you use your kitchen and the sink’s intended functionality.

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Top-mount sinks, also known as drop-in sinks, sit on top of the countertop, while undermount sinks are installed beneath the countertop. The choice affects cleaning ease and the overall aesthetic, with undermount sinks offering a seamless look.

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Prevent clogs by using a sink strainer to catch debris and avoid pouring grease down the drain. Regularly flush the drain with hot water and baking soda to maintain clear pipes.

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Clean a stainless steel sink by rinsing it with warm water and using a gentle dish soap and soft cloth. Avoid abrasive cleaners, which can scratch the surface, and consider using a vinegar and baking soda paste for stubborn stains.

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Multiple basins allow for multitasking, such as washing dishes in one basin while rinsing produce in another. This can improve kitchen efficiency and cleanliness but may require more countertop space.

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Minor scratches in a granite composite sink can often be repaired by cleaning the area and using a soft brush to apply a colored resin or matching composite sink repair kit. Polish the area afterward with a soft cloth for a seamless finish.

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Farmhouse sinks, or apron-front sinks, offer a deep basin that accommodates large pots and pans, making them ideal for avid cooks. Their distinctive look can also add a rustic charm to kitchen decor.

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While a handy homeowner might tackle a sink installation, it's often best to hire a professional, especially for undermount sinks or when plumbing adjustments are required. Proper installation ensures stability and leak prevention.

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Water spots on sinks, especially stainless steel, can be minimized by drying the sink with a towel after use. Use vinegar for regular cleaning, as its acidity helps dissolve mineral deposits left by hard water.

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For smaller items like faucets, sinks, bath accessories, and hardware, we partner with trusted carriers like UPS, FedEx, or USPS to ensure your order arrives safely and efficiently. Standard shipping is completely free for all orders over $1,000. For orders under $1,000, shipping costs are automatically calculated at checkout based on the weight, dimensions, and destination of your items.

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