Upgrade your kitchen prep space with the ALFI brand AB1720DI 17-inch drop-in rectangular granite kitchen prep sink, designed to bring lasting functionality and sleek style to busy homes. Crafted from heavy-duty granite composite, this single bowl sink measures 16 1/8 inches by 19 7/8 inches with a depth of 8 1/4 inches, offering a compact footprint that handles everyday tasks with ease.
Homeowners seeking a resilient and low-maintenance upgrade will appreciate the smooth, nonporous surface that resists scratches, dents, chips, and extreme thermal shocks without ever needing to be sealed. Certified by the Uniform Plumbing Code, this model arrives with convenient drop-in installation hardware and one pre-drilled faucet hole, featuring options for a plumber to punch out up to two additional holes.
Discover how this versatile granite prep sink combines high-end aesthetics with practical everyday reliability to make meal prep and cleanup more enjoyable in your space.
Perfect For
Kitchen remodels seeking a durable prep sink upgrade
Compact kitchen islands and bar areas
Home cooks who frequently handle hot pots and pans
Granite Composite Material Combines a very high-end look and long-term durability with low maintenance at an incredible value.
Compact Exterior Dimensions Measures 16 1/8 inches by 19 7/8 inches by 8 1/4 inches for a space-saving fit.
Single Bowl Inner Size Provides a generous inner bowl measuring 13 3/8 inches by 15 3/4 inches by 7 3/4 inches for washing produce and small cookware.
Drop-In Installation Includes necessary drop-in installation hardware and a recommended countertop cut-out hole of 15 3/8 inches by 18 7/8 inches with a 3/8-inch corner radius.
Thermal Shock Resistance Withstands severe thermal shocks and very high temperatures without being damaged.
Customizable Faucet Setup Comes with one pre-drilled faucet hole in the center with the option for a plumber to punch out an extra two holes.
Industry Certifications Certified by the Uniform Plumbing Code for peace of mind regarding quality and safety.
Thermal shock occurs when a material experiences rapid and extreme temperature changes, which can crack lesser materials. The granite composite construction in this drop-in sink acts like a thermal buffer, similar to how a thick double-walled glass mug protects your hands from boiling liquid while keeping the beverage hot. By distributing sudden temperature shifts evenly across its dense structure, the sink safely absorbs heat from boiling water or hot cookware without sustaining structural damage or surface stress.
Installation Guide
Verify that your countertop cut-out matches the recommended dimensions of 15 3/8 inches by 18 7/8 inches with a 3/8-inch corner radius.
Utilize the included drop-in installation hardware to secure the 16 1/8-inch by 19 7/8-inch sink firmly into place.
Consult a professional plumber if you wish to punch out the optional two extra faucet holes beyond the pre-drilled center hole.
Pair the 3 1/2-inch drain opening with a compatible drain model such as the recommended ABST35.
Care & Maintenance
Daily Cleaning Wipe down the nonporous surface regularly with a mild dish soap and a soft sponge to remove everyday residues.
Stain Prevention Rinse the sink thoroughly after washing colored liquids or foods to keep the granite finish looking pristine.
Avoiding Harsh Chemicals Refrain from using abrasive scouring pads, steel wool, or harsh chemical bleach that could dull the smooth surface over time.
No Sealing Required Enjoy the convenience of a granite composite material that never needs to be sealed or resealed.
Thermal Care While the material handles high heat well, always use trivets for extremely hot cast iron items left standing for extended periods.
FAQ
Q: What are the exact exterior dimensions of this sink?
The exterior dimensions measure 16 1/8 inches by 19 7/8 inches with a height of 8 1/4 inches.
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 3/4 inches.
Q: Does this sink require sealing?
No, granite composite sinks are entirely nonporous and do not need to be sealed or resealed.
Q: Is a drain included with the sink?
The drain is not included. The manufacturer recommends model ABST35.
Q: How many faucet holes does it come with?
It comes with one pre-drilled faucet hole in the center, with the option for a plumber to punch out up to two extra holes.
Q: What is the recommended countertop cut-out size?
The recommended counter top cut-out hole is 15 3/8 inches by 18 7/8 inches with a 3/8-inch corner radius.
Q: What type of installation does this sink use?
This is a drop-in sink and includes drop-in installation hardware.
Q: Is this sink certified by plumbing codes?
Yes, it is certified by the Uniform Plumbing Code (cUPC).
What Customers Are Saying
A homeowner in Kansas upgraded their kitchen island prep station to streamline meal preparation and beverage staging.
This granite prep sink handles hot pots straight from the stove and rinses clean effortlessly, making our kitchen island much more functional every day.
Sarah M. - Homeowner
Improved prep efficiency and eliminated the need for routine surface sealing.
This granite prep sink is the ideal size for our kitchen island and cleans up in seconds.
David L. | Kitchen Remodeler
Love that it handles hot pans without scratching or staining. Great addition to our home.
Rachel K. | Homeowner
Drop-in installation was straightforward and the single bowl depth is very practical for prep tasks.
Mark T. | Contractor
The granite composite material feels extremely solid and looks high-end on our new countertops.
Jessica P. | Interior Designer
Having the option to punch out extra faucet holes made matching our existing plumbing setup simple.
Brian H. | DIY Homeowner
Elevating Your Daily Kitchen Routine with Granite Composite
Investing in a quality kitchen prep sink transforms the workflow of your culinary space, making routine vegetable washing, beverage mixing, and quick cleanup tasks feel effortless. The ALFI brand granite composite construction offers exceptional long-term reliability for busy households, standing up to everyday wear and tear while maintaining its smooth, polished aesthetic year after year. Because the material is inherently nonporous, it prevents moisture absorption and inhibits bacterial accumulation, contributing to a cleaner and more hygienic kitchen environment for food preparation. Homeowners appreciate that this sink requires minimal effort to maintain its pristine appearance, freeing up time to focus on enjoying meals rather than scrubbing stubborn stains or polishing delicate surfaces.
Choosing fixtures crafted by experienced manufacturers ensures that every detail, from the precise drop-in dimensions to the robust thermal shock resistance, supports the demands of active modern kitchens. The thoughtful engineering behind this rectangular prep sink provides a harmonious balance between form and function, delivering dependable performance whether you are outfitting a secondary kitchen island or upgrading a compact bar space. By combining durable composite materials with flexible installation options, this sink adapts seamlessly to your lifestyle while enhancing the overall value and visual appeal of your kitchen design for decades to come.
Why This Is the Right Choice
High-End Value Delivers a luxurious granite aesthetic and long-term durability at an incredible value without requiring professional sealants.
Thermal Resilience Engineered from granite composite to withstand severe thermal shocks and very high temperatures during daily kitchen use.
Nonporous Surface Resists scratches, dents, chips, and stains while remaining entirely nonporous for simpler daily upkeep.
Flexible Setup Features a pre-drilled center faucet hole with options for a plumber to punch out up to two extra holes to match your hardware layout.
