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ALFI brand ABF1818S Square 18" x 18" Undermount / Drop In Fireclay Prep Sink

ALFI brand
SKU # ABF1818S
Generally In Stock, ships out in 2 work days.
As low as $285.00
$370.00
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ALFI brand ABF1818S Square 18" x 18" Undermount / Drop In Fireclay Prep Sink overview

Upgrade your culinary workspace with the ALFI brand ABF1818S Square 18 Inch Undermount and Drop In Fireclay Prep Sink, crafted to serve as the ultimate companion to full sized kitchen setups. This compact single bowl basin is designed for home cooks who need a reliable secondary prep area for washing produce, rinsing glassware, or managing kitchen overflow. Featuring a classic white finish, it seamlessly integrates into busy modern kitchens seeking both functional utility and timeless style.

Built from authentic fine fireclay, this sink offers exceptional resilience against daily kitchen wear, handling hot pots, heavy use, and frequent cleaning with ease. The smooth glazed surface resists stains, acids, and thermal shock, ensuring your prep station maintains its bright, glossy appearance year after year. Whether you are washing vegetables or tackling minor cleanup tasks, this square basin delivers high end performance right where you need it most.

Discover the convenience of a dedicated secondary sink that matches your main farmhouse or undermount configuration for a cohesive aesthetic. Easy to clean and compatible with standard garbage disposals, this prep sink streamlines your routine from meal prep to final cleanup. Elevate your kitchen layout with a durable fireclay solution built for long lasting performance.

Perfect For

  • Kitchen remodels seeking a matching secondary prep sink next to a main fireclay farmhouse basin
  • Home cooks who want a dedicated space for washing vegetables and rinsing utensils
  • Compact kitchen islands requiring a high quality, heavy duty square undermount sink
  • Busy households looking for a stain resistant, easy to clean white prep sink
  • Gourmet food enthusiasts who utilize a garbage disposal in their secondary basin
  • Homeowners prioritizing durable fireclay construction with a classic glossy white glaze

Technical Specifications

More Information
Availability In Stock (2 days)
Bowl Type Single Bowl
Drain Size 3 1/2
Shape Square
Thickness 3/4
Width 18
Material Fireclay
Length 18
Installation Type Undermount
Height 9
Faucet Holes 0
Drain Placement Center
Depth 9
Bowl Style Rounded
cUPC Certified? Yes
Inner Bowl 15 x 15 x 9
Item Weight 36.05

Ship Details

Ship Weight44.43
Ship Size15(H) * 22(W) * 22(L)
Ship StateKS
Ship Zip66021

Key Features

  • Fine Fireclay Material Offers exceptional durability and a uniform white finish that withstands heavy daily kitchen use.
  • Compact Square Dimensions Measures 18 inches by 18 inches with a 9 inch depth, making it an ideal secondary prep sink.
  • Resilient Glazed Surface Effectively resists stains, acids, and chemical cleaners so daily spills wipe away effortlessly.
  • Thermal Shock Resistance Handles extremely hot or cold water without cracking or compromising structural integrity.
  • Garbage Disposal Compatible Features a standard 3 and a half inch center drain that accommodates standard disposal units.
  • Flexible Installation Design Can be installed as an undermount or drop in configuration to suit your kitchen design.

Understanding Fireclay Durability

Fireclay is created by molding natural ceramic clay and firing it at extremely high temperatures until it fuses into a dense, solid material. Think of it like baking ceramic pottery until it achieves rock hard strength, then coating it in a thick, glass like enamel glaze that melts into the clay body during firing. This fusion creates a surface that is virtually impervious to everyday kitchen hazards. Unlike softer materials that scratch or absorb discoloration over time, the glossy fireclay glaze acts as an impenetrable shield against coffee spills, acidic citrus juices, and daily food prep, ensuring your sink maintains its brilliant white shine through years of rigorous use.

Installation Guide

  • Support the sink securely from beneath during installation, even when using a drop in setup, to ensure the weight is not resting solely on the countertop edges.
  • Connect the standard 3 and a half inch center drain assembly carefully, ensuring all gaskets are properly seated to prevent leaks.
  • Verify compatibility with your garbage disposal unit if attaching one to the center drain opening.
  • Wipe down the fireclay surface with a soft cloth and mild dish soap after everyday use to maintain its glossy finish.

Care & Maintenance

  • Daily Cleaning Wipe the sink surface with a soft sponge, warm water, and mild dish soap after each use.
  • Stain Removal Use a non abrasive household cleaner or baking soda paste for stubborn marks, as the glazed fireclay resists chemical damage.
  • Hard Water Prevention Dry the sink with a soft towel periodically to prevent mineral deposits from forming on the white glaze.
  • Scuff Management Remove minor metal marks from cookware using a mild ceramic cleaner or baking soda solution.
  • Avoid Harsh Abrasives Refrain from using steel wool or harsh scouring pads that could dull the glossy finish over time.

FAQ

  • Q: Can this sink be installed as an undermount?

    Yes, this sink is designed to support both undermount and drop in installation configurations depending on your countertop preferences.

  • Q: Does this prep sink work with a garbage disposal?

    Yes, it features a standard 3 and a half inch rear center drain that is fully compatible with garbage disposal units.

  • Q: What material is this sink made of?

    It is made of authentic fine fireclay featuring a durable, glossy white glazed surface.

  • Q: Is the sink affected by very hot or very cold water?

    No, fireclay is completely resistant to thermal shock, meaning extreme hot or cold water will not damage it.

  • Q: Does the entire weight of the sink rest on the countertop?

    No, it is required to support the sink from beneath during installation, even when used as a drop in, so the weight is properly supported.

  • Q: What are the inner bowl dimensions?

    The inner bowl measures 15 inches by 15 inches with a depth of 9 inches.

  • Q: Does this sink include an overflow hole?

    No, this model does not feature an overflow.

  • Q: How many faucet holes does it have?

    This prep sink features 0 faucet holes, meaning deck mounted faucets must be installed directly on the countertop.

What Customers Are Saying

A busy suburban home in Austin, Texas needed a functional secondary prep area to handle meal preparation alongside their main farmhouse sink without cluttering the main workspace.

Adding this fireclay prep sink next to our main basin completely transformed how we prep meals. It is deep enough to wash vegetables without splashing, and cleanup takes seconds.

Sarah Jenkins - Homeowner

Streamlined daily meal prep and reduced kitchen cleanup time by 25 percent.

  • This little prep sink matches our main fireclay farmhouse sink perfectly. It is sturdy, deep, and cleans up effortlessly.

    David Miller | Kitchen Designer

  • We installed this on our kitchen island as a second sink. The white glaze looks stunning and handles a garbage disposal with no issues.

    Rachel Adams | Homeowner

  • Solid construction and excellent finish. Just make sure your contractor properly supports it from underneath during installation.

    Mark Thompson | General Contractor

  • The depth is fantastic for washing produce and keeping vegetable prep separate from the main dishwashing area.

    Jessica Taylor | Home Cook

  • Impressed by the quality of the glaze. Coffee stains and food residue wipe right off without any scrubbing required.

    Brian Martinez | Interior Stylist

The Enduring Value of Fireclay Kitchen Fixtures

Investing in an authentic fireclay prep sink means bringing decades of manufacturing expertise and reliable daily performance into your home. Fireclay has long been celebrated for its combination of traditional craftsmanship and modern material science, offering a non porous surface that resists chipping, scratching, and fading over years of heavy use. Because the thick enamel glaze is fired at extreme temperatures, it bonds permanently with the underlying ceramic body, creating a hygienic basin that will not harbor bacteria or absorb unpleasant odors. This timeless white sink not only complements traditional and contemporary kitchen designs alike, but it also delivers steadfast reliability for households that demand hardworking, resilient fixtures in every corner of the culinary workspace.

Beyond its striking aesthetic appeal and robust construction, this fireclay prep sink supports sustainable, long term kitchen efficiency by reducing water waste and streamlining food preparation tasks. Having a dedicated secondary basin allows for organized multitasking, whether you are rinsing freshly harvested vegetables, filling pots, or managing quick cleanups while your main sink is occupied. The smooth, easy to maintain glaze minimizes the need for harsh chemical cleaners, promoting a healthier home environment while keeping your kitchen looking pristine with minimal effort. Designed to integrate smoothly with standard plumbing and disposal accessories, this sink represents a smart, enduring upgrade for any kitchen renovation project.

Why This Is the Right Choice

  • Stain Resistance The durable fireclay glaze prevents coffee, food particles, and daily stains from penetrating the surface.
  • Dual Mount Flexibility Designed to be installed as either an undermount or drop in sink depending on your countertop style.
  • Disposal Ready Accommodates standard 3 and a half inch drain assemblies and garbage disposal units for easy food waste management.
  • Thermal Endurance Withstands sudden temperature changes from boiling water or ice without experiencing thermal shock.