Source premium φ420mm round undermount granite composite kitchen sinks. Crafted with 75% quartz, compact, heat & scratch resistant. Perfect for bars & small spaces.

Modern φ420mm Undermount Round Granite Composite Single Bowl Kitchen Sink

Modern φ420mm Undermount Round Granite Sink
  • Material: Premium Quartz Composite (75% Quartz/Granite + 25% Acrylic Resin).
  • Shape: Round Single Bowl – space-saving design perfect for compact kitchens or bar areas.
  • Installation: Undermount – creates a seamless, modern, and easy-to-clean transition.
  • Dimensions: Overall φ420mm with a functional 220mm deep basin.
  • Extreme Durability: Highly scratch-resistant and heat resistant up to 200°C.
  • Aesthetics: Luxurious Matte Finish available in Black, Grey, White, and Beige.
  • Smart Details: Smooth transition radius (R15 equivalent) for easy cleaning and standard 114mm drain hole.
Model: USG420A
MOQ: 50 Sets

Product Parameters:

Every PVD sink passes a rigorous 15-point IPQC & Final Inspection.See our inspection checklist ➔

Modern φ420mm Undermount Round Granite Composite Single Bowl Kitchen Sink

Modern φ420mm Undermount Round Granite Composite Single Bowl Kitchen Sink

Modern φ420mm Undermount Round Granite Composite Single Bowl Kitchen Sink

Product Parameter Table:

Model No:USG420A
Product Type:Single Bowl
Installation Type:Undermount
Composition:75% Quartz / Granite + 25% Acrylic Resin
Heat ResistanceUp to 120°C – 200°C
Color Options:Black/Grey/White/Beige
Surface Finish:Matte
Overall Size (L×W×H):φ420mm
Bowl Size:φ364mm
Depth:220mm
Corner Radius:R15
Drain Hole Size:114mm
Faucet Hole:Pre-drilled / Optional
Material:Quartz Composite (Granite Sink)
CE Certificationyes
Amazon Food Market Reportyes
OEM / ODM Serviceyes
Packing:1pcs/ Carton
Carton Type:Strong Export Carton with Foam
Pallet:Available
20GP Loading:450pcs
40HQ Loading:1100pcs
Gross Weight:20-30KGS
Net Weight:8-13KGS

Space-Saving Sophistication: φ420mm Round Undermount Granite Sink

Maximize style and utility in your compact kitchen or bar area with our φ420mm Round Undermount Granite Composite Sink. This modern single-bowl sink seamlessly integrates beneath the countertop, delivering a sleek, uninterrupted workspace. The elegant circular design and luxurious matte texture make it the perfect centerpiece for premium small-space projects.

Engineered for Extreme Durability (75% Quartz)

Constructed from a premium blend of 75% natural Quartz/Granite and 25% Acrylic Resin, this compact sink is built to survive the toughest environments. It is highly resistant to impact, chipping, and scratches from heavy cookware. Plus, it offers outstanding thermal shock protection, effortlessly withstanding extreme heat up to 200°C without warping or cracking.

Functional Depth & Hygienic Finish

Maximizing utility within a small footprint. Despite its compact size, the generous 220mm deep basin (φ364mm inner bowl) easily accommodates stacks of dishes or large cocktail shakers. The densely compacted quartz material creates a 100% non-porous surface that naturally repels liquids, stubborn stains, and bacteria, ensuring a hygienic food preparation area.

Luxurious Matte Color Options

The non-porous matte surface is designed for lasting beauty. Available in four sophisticated matte options—Black, Grey, White, and Beige—this versatile round sink complements any contemporary cabinetry, bar counter, or stone countertop design.


Wholesale Note: The φ420mm compact round size is a “Problem Solver” in the B2B market, ideal for bar stations, RVs, secondary sinks in luxury homes, or studio apartment developments. This model provides an efficient, high-margin solution for contractors and developers aiming for a premium, heavy-duty aesthetic in limited spaces.

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