The Nantucket Sinks 15.75" Square Italian Fireclay Vessel Bathroom Sink comes in 3 versions: Matte Concrete, Matte Black or Matte White color. Pick your options above to open the exact model, with its own price and details. The details below are for the Matte Concrete version.
The Nantucket Sinks RC4033C is a 15.75" square Italian fireclay vessel sink in a matte concrete glaze with a semi-sheen finish. Named for a gorgeous mountain lake in Italy, it is a compact, architectural basin for a powder room or modern bath, where a crisp square in an industrial grey makes a strong design statement.
Because a vessel sits on top of the counter, plan the faucet with it: a tall vessel faucet on the deck or a wall-mount faucet clears the rim, and Nantucket's matching umbrella pop-up drains, sold separately, come in several finishes. The Regatta Collection, inspired by famous ports, lakes and seaside towns, runs from matte concrete, white and black glazes to metal-leaf and hand-painted pieces, so a powder room and a primary bath can share one collection in different looks.
Every Regatta sink is genuine fireclay, designed and hand finished in Italy and fired at high temperatures, which Nantucket says makes it stronger than typical bathroom sinks. Dimensions are nominal and can vary by about 1/4" from piece to piece, and the bowl takes a standard 1.75" vanity drain (not included).
The square vessel is 15.75" x 15.75" and 5" tall, with a 15" x 15" basin 4" deep, a compact footprint for a powder room or a narrow vanity. Named for a mountain lake in Italy, it is finished in a placid matte glaze: unlike a high gloss finish, which is highly reflective, the matte glaze catches and diffuses light in a soft glow.
Planning the Vanity
Planning a vanity around it is straightforward. It has no faucet holes, so the faucet goes on the countertop or the wall, and the drain opening takes a vanity drain without overflow made for the 1.75" opening, sold separately, which Nantucket offers as matching umbrella pop-up drains in several finishes. At 20 lbs, the sink is set on the counter or in its cutout with plumbing silicone, and professional installation is recommended.
A vessel sits on top of the vanity, so the countertop needs only the drain hole, and Nantucket's vessel guide asks you to dry fit the sink first and leave at least 5" at the rear of the vanity for a faucet.
Caring for Hand-Finished Fireclay
Each Regatta sink is hand finished in Italy, so look after it gently: Nantucket asks for pH neutral soap and a soft cloth only, no abrasive cleansers or pads, and no improper or caustic cleansers, which can damage the glaze. Fired fireclay will not rust.
For a bathroom or powder room that wants an Italian fireclay bathroom sink with real craftsmanship, the Nantucket Sinks RC4033C turns the vanity into a focal point while staying practical for daily hand washing.
Features
Matte Concrete Glaze
The concrete glaze has a semi-sheen finish that diffuses light softly, giving the square bowl a calm, stone-like surface.
Architectural Square
The crisp square shape in concrete grey suits modern, industrial and minimalist vanities, and pairs with black or brushed faucets.
Compact 15.75" Square
The 15.75" square footprint fits narrow vanities and powder rooms while the 15" x 15" basin stays practical for hand washing.
Hand Finished in Italy
Each Regatta sink is genuine fireclay, designed and finished by hand in Italy, so small variations make every piece unique.
High-Fired Fireclay
Fired at high temperatures, the sink is, in Nantucket's words, stronger than typical bathroom sinks, and the glaze will not rust.
Standard 1.75" Vanity Drain
The center opening takes a standard 1.75" bathroom drain without overflow, so matching pop-up drains in several finishes fit; the drain is sold separately.
Specifications
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Model: RC4033C
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Collection: Regatta Collection
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Material: Fireclay
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Finish: Glazed
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Color: Matte Concrete
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Mount: Top-mount
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Sink Type: Vessel
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Bowls: Single
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Shape: Square
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Exterior Dimensions: 15.75" x 15.75" x 5"
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Interior Dimensions: 15" x 15"
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Bowl Depth: 4"
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Faucet Holes: None
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Overflow: No
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Drain Opening: 1.75"
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Drain Position: Center
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Drain Included: No
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Weight: 20 lbs
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Country of Origin: Italy
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Warranty: 5-year limited
What's Included
- RC4033C fireclay bathroom sink
Sold separately: NS-UDMB umbrella pop-up drain without overflow in matte black, NS-UDC umbrella pop-up drain without overflow in chrome, NS-UDBROB umbrella drain without overflow, NS-UDBN umbrella pop-up drain without overflow in brushed nickel.
Installation & Care
Installation
This vessel sink sits on top of the vanity countertop, so no cabinet cutout beyond the drain hole is needed. Following Nantucket's vessel guide, dry fit the bowl, leave at least 5" behind it for the faucet, and cut a 5" diameter hole on the drain center; the sink has no faucet holes, so plan a tall vessel faucet on the deck or a wall-mount faucet. A bead of plumbing silicone bonds the base to the counter (sealant not included). The center drain takes a standard 1.75" vanity drain without overflow, since the sink has no overflow, sold separately. Nantucket recommends professional installation. The Vessel installation guide is in Resources.
Care
Clean the sink with a pH neutral soap and a soft cloth only, then rinse and wipe it dry; Nantucket requires pH neutral soap for Regatta Collection sinks. Do not use abrasive cleansers or pads, and keep improper or caustic cleansers off the glaze, since Nantucket's warranty does not cover glaze damage they cause. Fireclay will not rust.
Resources
Shipping, Returns & Warranty
Nantucket Sinks ships this item by UPS or FedEx from North Kingstown, Rhode Island, usually within 1 to 2 business days of your order. Shipping is free within the lower 48 states on orders of $101 or more (orders under $101 ship for a flat $15); for Alaska or Hawaii, contact us before you order. You'll get tracking by email as soon as it ships.
Inspect the packaging and the product before you sign. Note any damage or shortage on the delivery receipt, then email photos to support@mycleansupplies.com within 48 hours of delivery so the freight claim can be filed. Damage reported after 48 hours can't be claimed.
Unused Nantucket Sinks products in their original packaging can be returned within 21 days of delivery. Ask us for a return authorization before you ship. Returns carry Nantucket Sinks' 25% restocking fee, you pay the return shipping, and the return travels at your risk, so pack it as it arrived. Payment processing fees are not refunded. Installed, used or damaged products, and discontinued models, can't be returned.
Nantucket Sinks backs its fireclay sinks with a 5-year limited warranty: it replaces, at its option, any sink found to have a material defect, and replacement sinks are offered at 50% of the original purchase price. Glaze damage from improper or caustic cleansers, cracks from impact, a farm sink forced into its cutout, and cracks from an over-tightened drain are not covered. The warranty covers residential installations for the original purchaser; installation, labor and transportation costs, and damage from installation, improper cleaning, misuse or neglect, are not covered.
Warranty claims. Email Nantucket Sinks at info@nantucketsinksusa.com with the date and place of purchase and installation, the model number, a description of the defect and photos of it. Nantucket Sinks may inspect the product and the installation before it decides on a replacement or adjustment. Contact us with your order number if you would like help with the claim.
About Nantucket Sinks
Nantucket Sinks is a boutique sink maker based in North Kingstown, Rhode Island, that has designed kitchen and bath sinks for more than two decades. Its range of over 500 products brings together fireclay, stainless steel, granite composite, vitreous china, cast iron and hand-hammered metals sourced from skilled makers in Italy, China and beyond, styled with the charm of the New England coast.
The Regatta Collection is Nantucket Sinks' line of hand finished Italian fireclay bathroom sinks inspired by famous ports, lakes and seaside towns, each shaped and decorated as a piece of art for the vanity. It runs from matte and semi-matte glazes in concrete, black and white (the RC4011 round, RC4033 square, RC5022 oval and RC6044 rectangular vessels) to patterned, hand-painted and metal-leaf pieces such as the Drake, Monte Carlo, La Maddalena, Porto Cervo, St. Louis, St. Malo, Santorini, Anzio, Izola and Dubai, in vessel, semi-recessed, drop-in and undermount styles.
