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Custom Oval SS Undermount Bathroom Sink​

Stainless Steel Lavatory Vanity Undermount Bathroom Vessel Sinks Basin with Drain
Availability:
Quantity:
  • ACS8805

  • Custom Made / Aquacubic

4

Model Number: ACS8805
Feature: Handmade Bathroom Sink
Dimensions:

700*430 mm

Material: Stainless Steel
Style: Without Faucet Shape: Rectangular /oval/round
Thickness 16 Ga/18 Ga/20 Ga Surface: PVD nano
Spare Parts 1: Drain Assembly Spare Parts 2: Protective Bottom Grid
Certificate
UPC CUPC CE WRAS
Color: Gunmetal Black
Faucet Mount: 1 Hole Quality Inspection 100%
Brand Name: Custom Made Sink Style: Single Bowl

Product Overview


The Custom Oval SS Undermount Bathroom Sink merges personalized design with industrial durability, offering a sleek solution for modern bathrooms seeking both style and functionality. Crafted from 16-gauge (1.5mm thick) 304 stainless steel—containing 18% chromium and 8% nickel—this undermount sink delivers exceptional corrosion resistance and longevity, even in high-moisture environments. Unlike standard rectangular sinks, its oval silhouette softens bathroom aesthetics while maximizing usable space. With customizable dimensions ranging from 18-24 inches in length and 14-20 inches in width, it adapts perfectly to both compact powder rooms and spacious master bathrooms. The undermount installation creates a seamless transition between sink and countertop, eliminating rim edges that trap water and debris, making it an ideal choice for luxury renovations and custom bathroom designs.


Product Features


Premium 304 Stainless Steel Construction

Engineered from medical-grade 304 stainless steel, this sink offers superior resistance to rust, stains, and discoloration caused by toiletries, hard water, and daily use. The 16-gauge thickness provides structural integrity capable of supporting up to 200kg when filled, preventing warping or deformation over time. The material's non-porous surface naturally resists bacteria growth, maintaining a hygienic environment without chemical treatments. Unlike thinner 18-gauge alternatives, the 16-gauge steel minimizes noise from water flow and vessel impacts, enhancing bathroom tranquility.


Customizable Oval Design

The oval shape optimizes basin capacity while occupying less visual space than rectangular models, making small bathrooms appear larger. Customers can select dimensions within the 18-24 inch length and 14-20 inch width range, with a standard bowl depth of 8-10 inches to prevent splashing. Optional features include offset drain placement to maximize under-sink storage and rounded interior corners (1.5-inch radius) that simplify cleaning by eliminating hard-to-reach crevices where grime accumulates.


Seamless Undermount Installation

Designed for undermount mounting, this sink attaches beneath the countertop, creating a smooth, uninterrupted surface that allows water and debris to be easily wiped into the basin. The flange is precision-machined to ensure tight adhesion to solid surfaces, supporting a watertight seal that prevents moisture damage to cabinetry. This installation method preserves countertop space and complements high-end materials like granite, marble, and quartz, enhancing overall bathroom elegance.


Sound-Dampening Technology

Equipped with heavy-duty rubber padding on the underside and a protective resin coating, the sink reduces water flow noise by up to 40% compared to uninsulated stainless steel sinks. This acoustic insulation minimizes echoing in bathrooms with hard surfaces, creating a quieter handwashing experience—especially valuable in early mornings or late nights when noise sensitivity is higher. The undercoating also prevents condensation buildup, protecting cabinetry from water damage.


How to Install


Begin by confirming your countertop material is compatible with undermount installation—solid surfaces like granite, quartz, or marble are recommended, while laminate requires additional bracing. Ensure cabinetry is structurally sound and can support 200kg when the sink is filled with water.

Work with your countertop fabricator to create a cutout matching your custom dimensions, typically 1-2 inches smaller than the sink's exterior dimensions to provide adequate support. The cutout should follow the oval curve precisely to ensure proper fit.

Apply a continuous bead of high-quality silicone sealant along the sink's flange. Carefully position the sink beneath the countertop cutout, ensuring it is centered and level. Secure it using the provided undermount brackets, spacing them 6-8 inches apart around the perimeter to distribute weight evenly.

Tighten the brackets gradually to avoid warping the sink, ensuring full contact between the flange and countertop. Allow the silicone sealant to cure for 24 hours before connecting plumbing. Install the drain assembly according to manufacturer instructions, using plumber's putty to create a watertight seal.

After curing, turn on the water supply and check for leaks around the drain and flange. Run water and test drainage to ensure proper functionality before regular use.


FAQ


What countertop materials work best with this undermount sink?

Solid surface materials like granite, quartz, marble, and solid surface composites are ideal as they provide sufficient support and can be precisely cut for a perfect fit. Laminate countertops require additional plywood reinforcement beneath the cutout area to prevent sagging. Always consult your countertop manufacturer to confirm weight capacity compatibility.

How do I maintain the stainless steel finish?

Daily maintenance requires only warm water and a soft cloth. For deeper cleaning, use a mild soap solution and non-abrasive sponge, avoiding harsh chemicals or steel wool that can scratch the surface. Remove water spots by drying the sink after use, especially in hard water areas. For stubborn mineral deposits, apply a stainless steel cleaner and buff in the direction of the grain.

Can I customize the drain location?

Yes, this sink offers customizable drain placement—either centered or offset—to maximize under-sink storage space. Offset drains are particularly popular as they allow for larger vanity cabinets or more storage baskets beneath the sink. Specify your preferred drain location when ordering to ensure proper fabrication.

What is the expected lifespan of this sink?

With proper installation and maintenance, a 16-gauge 304 stainless steel undermount sink typically lasts 15-20 years or more. The material's corrosion resistance prevents rust and degradation, while the robust construction withstands daily use without showing significant wear. Most manufacturers back this quality with a lifetime warranty on material defects and craftsmanship.


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Stainless Steel Oval Under Couter Bathroom Sink

• Material: 304 Stainless Steel

• Thickness: 18 Ga

• Round corner(R10)

• Rear drainer location, with strainer

• Side and bottom sound pads with full spray insulation

• Bonus Accessories: sink, popup drain, mounting clips

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Elevate Bathroom Spaces with Aquacubic's Stainless Steel Vessel Sink


Aquacubic bathroom luxury with our handcrafted SUS304 stainless steel vessel sinks, combining European elegance with industrial durability. As the industry leader in PVD nano-coated sinks, we offer B2B buyers premium bathroom solutions that blend artisanal craftsmanship with cutting-edge surface technology. Our golden brushed finish transforms ordinary vanities into statement pieces, while the patented X-shaped drainage system ensures optimal functionality.

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Unmatched Material Excellence

Engineered with marine-grade SUS304 stainless steel (18/8 chromium-nickel composition), each sink undergoes 12-stage quality control from material inspection to final air-water testing. The PVD nano coating provides 3x greater corrosion resistance than standard finishes, with laboratory-proven results showing 98% reduction in water spot retention and fingerprint visibility. Ideal for high-traffic commercial spaces and luxury residences demanding low-maintenance surfaces.

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Design Innovations for Professional Buyers


Ergonomic R10 Corners: 10mm radius edges exceed EU safety standards (EN 817) while simplifying cleaning

Acoustic Engineering: 8mm thick vibration-damping pads reduce noise by 42dB (ASTM E90 tested)

Smart Drainage: 3° sloped base with laser-etched X-grooves accelerates water flow by 30% versus conventional designs

Modular Compatibility: Fits all standard 35-48" vanity cabinets with optional undermount conversion kits

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Certified Manufacturing Excellence

Our Thailand &China double-based factory (106,750 sq.ft.) holds CE/CUPC certifications and complies with QSA/CTPAT audit protocols. 

Each unit includes:

5-year warranty

Custom OEM/ODM services (minimum order: 50 units)

Bulk shipping optimization (240 units/40HQ container)

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Why Global Distributors Choose Aquacubic

With 15+ years specializing in luxury sanitaryware, we provide:


Cost Efficiency: 18% lower production costs through vertical integration

Design Support: Free 3D bathroom visualization files for resellers

Supply Chain Reliability: 98.7% on-time delivery rate to EU/NA markets

Technical Partnership: Dedicated engineering team for custom projects


Contact our export team for wholesale pricing and 2025 catalog with 36 new finishes including matte black and rose gold PVD options.

stainless basin 多色

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