Upgrade your culinary space with the ALFI brand AB1720UM 17-inch undermount rectangular granite kitchen prep sink, designed for homeowners seeking modern style and lasting durability. Crafted from exceptionally strong granite composite material, this single bowl prep sink handles daily kitchen tasks with ease while maintaining a sleek, flawless look.
Tailored for contemporary kitchens, wet bars, or prep stations, this nonporous sink resists heat, scratches, dents, and chips without ever requiring sealants. Its smooth surface makes cleanup simple, allowing you to spend less time scrubbing and more time enjoying your kitchen.
Bring dependable performance and understated elegance to your countertop with a cUPC certified fixture built to support your cooking routines for years to come.
Perfect For
Kitchen remodels looking for a durable, high-end prep sink upgrade
Home cooks who frequently handle hot pots and pans during meal preparation
Compact kitchen islands or wet bar setups requiring a space-saving single bowl
Modern kitchen designs calling for a clean undermount granite aesthetic
Homeowners wanting low maintenance surfaces that do not require sealing
Properties seeking cUPC certified plumbing fixtures for assured quality
Granite Composite Material Delivers high-end visual appeal while offering strong resistance to heat, scratches, dents, and chips.
Undermount Installation Creates a seamless transition from countertop to sink for easy cleanup and a modern aesthetic.
Single Bowl Design Provides a dedicated 13 3/8-inch by 15 3/4-inch inner bowl workspace tailored for prep tasks and tight spaces.
Nonporous Surface Resists stains and odors naturally without the need for periodic sealing or resealing.
Thermal Shock Resistance Withstands severe temperature changes and very high heat without sustaining damage.
cUPC Certified Meets recognized plumbing standards for safety and reliable residential performance in the United States.
Understanding Granite Composite Durability
Granite composite is engineered by combining crushed natural stone with advanced resins, creating a material that acts much like natural granite armor for your countertop. Think of it like reinforced concrete where the stone aggregate provides immense structural strength while the resin binder fills microscopic gaps, resulting in a solid surface that absorbs impact and repels moisture entirely. Because the color and material composition run deep throughout the 3/8-inch thickness, the sink resists chipping and fading, ensuring your prep station maintains its structural integrity and visual appeal through years of heavy kitchen use.
Installation Guide
Prepare your countertop using the recommended cutout dimensions of 13 5/16 inches by 15 11/16 inches with a 3/16-inch corner radius.
Utilize the included undermount installation hardware to secure the sink safely beneath solid surface countertops.
Pair the 3 1/2-inch rear center drain opening with the recommended ABST35 drain model for proper water evacuation.
Wipe down the granite composite surface regularly with mild soap and warm water to maintain its clean appearance.
Care & Maintenance
Daily Cleaning Wipe the sink basin down with mild dish soap, warm water, and a soft sponge after each use.
Stain Prevention Rinse away coffee, tea, or dark liquids promptly to prevent residue buildup on the smooth surface.
Hard Water Maintenance Remove occasional mineral deposits using a 50/50 mixture of white vinegar and water, then rinse thoroughly.
Scouring Avoidance Do not use harsh steel wool pads or abrasive metal scrubbers that could dull the granite composite finish.
Chemical Safety Avoid leaving harsh chemical solvents or bleach solutions sitting on the sink surface for extended periods.
FAQ
Q: What are the exterior dimensions of this sink?
The exterior measures 16 1/8 inches in width, 17 3/4 inches in length, and 8 1/4 inches in height.
Q: What size is the inner bowl?
The inner bowl measures 13 3/8 inches by 15 3/4 inches with a depth of 7 7/8 inches.
Q: Does this sink require sealing like natural stone?
No, the granite composite material is entirely nonporous and never needs to be sealed or resealed.
Q: What size countertop cutout is recommended?
The recommended countertop cutout hole is 13 5/16 inches by 15 11/16 inches with a 3/16-inch corner radius.
Q: Is the drain included with the sink?
The drain is not included, but the manufacturer recommends model ABST35 for a proper fit.
Q: What is the diameter of the drain opening?
The drain opening is 3 1/2 inches in size, located at the rear center of the bowl.
Q: Does this sink come with installation hardware?
Yes, undermount installation hardware is included in the box.
Q: Is this sink certified for residential plumbing standards?
Yes, it is certified by the Uniform Plumbing Code (cUPC).
What Customers Are Saying
A homeowner in Austin, Texas upgraded their kitchen prep station to improve workspace efficiency during weekend cooking routines.
The ALFI brand granite composite prep sink completely transformed our kitchen island. It handles hot pans straight from the stove without a mark, and cleaning up takes seconds since food does not stick to the smooth surface.
Marcus Vance - Homeowner
Reduced daily cleanup time and eliminated the need for chemical sealants
This prep sink fits our kitchen island perfectly and looks incredibly sleek with our quartz countertops.
Sarah Jenkins | Interior Designer
Sturdier than I expected for the size. It handles boiling water and heavy pots without any issues at all.
David Miller | Homeowner
Very nice quality granite composite material. Cleaning up takes minimal effort since food wipes right off.
Elena Rostova | General Contractor
The undermount hardware made installation straightforward, and the zero radius corners give it a sharp modern look.
Robert Taylor | DIY Renovator
Exceptional value for a granite prep sink. It feels solid, resists scratches, and looks fantastic in our wet bar.
Jessica Wong | Architect
Elevating Everyday Kitchen Functionality
Choosing the right prep sink is about more than aesthetics; it is about finding a fixture that integrates seamlessly into your daily kitchen rhythm. The ALFI brand granite composite prep sink is engineered to support active food preparation areas where efficiency and hygiene matter most. Its dense, nonporous stone construction prevents liquids from penetrating the surface, ensuring that food prep juices and moisture do not become trapped in microscopic crevices. This natural defense against staining and bacterial absorption makes the sink exceptionally hygienic for food handling spaces, giving home cooks peace of mind during meal creation.
Beyond hygiene, investing in a high-quality granite composite sink pays dividends in long-term reliability and effortless upkeep. Traditional porcelain or stainless steel prep sinks often show scratches or water spots quickly, requiring constant polishing or specialized cleaners to look their best. In contrast, this sink retains its clean matte appearance through years of heavy use without demanding tedious maintenance routines or protective sealants. By combining structural resilience with understated modern style, this sink delivers a dependable workspace that enhances both the workflow and appearance of your kitchen or wet bar for years to come.
Why This Is the Right Choice
Exceptional Value Delivers high-end granite composite quality and durability at a fraction of the cost of comparable luxury sinks.
Low Maintenance Features a nonporous surface that never needs sealing and cleans up effortlessly after food prep.
Thermal Resilience Safely handles boiling water and hot pans without thermal shock or structural cracking.
Robust Durability Resists scratches, dents, and chips to maintain its refined rectangular shape over years of daily kitchen use.
