Signature Features:
Proven Best Seller
One of our most popular modern rectangular lavatory sinks, trusted by homeowners, designers, builders, and fabricators seeking clean lines, contemporary styling, and dependable everyday performance.
Modern Flat-Bottom Basin Design
Features a contemporary flat-bottom basin with straight sidewalls that maximizes usable interior space while creating the crisp geometric appearance favored in today's luxury residential and commercial bathroom designs.
Timeless Luminous Gloss White Finish
Rendered in a radiant, light-reflective porcelain glaze that resists staining and maintains its brilliance with effortless care.
Fully Integrated Undermount Design
Installs discreetly beneath the countertop, creating a smooth, uninterrupted surface with refined architectural appeal.
Premium Vitreous China Construction
High-fired for superior strength and longevity, delivering enduring beauty and dependable performance in both residential and commercial environments.
Effortless, Easy-to-Clean Surface
Crafted with a dense, non-porous porcelain finish that wipes clean with ease, resisting stains and buildup while preserving its radiant white brilliance with minimal maintenance.
Design Highlights:
The Oasis Tideway Medium Rectangular Lavatory Basin embodies the clean architectural principles of modern bathroom design. Featuring a nearly flat basin floor and straight sidewalls, the Tideway creates the sleek, geometric appearance sought by today's designers while maintaining excellent drainage performance for practical everyday use.
Unlike traditional curved-bowl lavatory sinks, the Tideway's flat-bottom design creates a larger visual basin opening and a more structured, furniture-inspired aesthetic. The clean vertical walls and expansive basin floor complement contemporary cabinetry, floating vanities, quartz countertops, and minimalist bathroom environments. The result is a sink that feels intentional, sophisticated, and architecturally integrated rather than simply functional.
The flat-bottom basin also offers practical advantages. The expanded usable basin area provides additional room for everyday tasks, while the straight sidewalls create a more spacious feel within a compact footprint. This design has become a favorite among designers seeking luxury hotel-inspired bathrooms, contemporary master suites, and upscale powder rooms.
Part of the Oasis Vitreous China Collection, this undermount lavatory sink delivers the elegant appearance designers demand while providing the durability and reliability expected by builders and homeowners. Its balanced proportions pair beautifully with granite, quartz, porcelain, marble, and ultra-compact surfaces, creating a seamless integrated appearance beneath the countertop.
Manufactured using premium vitreous china construction and precision molding techniques, the Tideway is designed to closely mirror the dimensions and appearance of the popular Kohler® Kathryn® and Kohler® Verticyl® sink styles. This makes it an excellent choice for remodels, replacement projects, and specifications requiring a proven contemporary rectangular design.
Built for real-world use, the dense vitreous china resists staining, scratching, and everyday wear. Its non-porous surface cleans easily and maintains its polished appearance, delivering long-lasting durability with minimal upkeep.
The luminous gloss white finish enhances natural and artificial light alike, helping create a bright, open feel while complementing virtually any bathroom color palette or design style.
For projects utilizing floating vanities, console-style installations, or open-bottom vanity designs where the underside of the sink may be visible, the Tideway Medium Wh-G is a fully glazed version, providing a finished porcelain appearance on all exposed surfaces for a clean, professional presentation.
ADA & Commercial Compliance
This model is designed to meet ADA requirements for commercial applications when installed according to proper guidelines. Its versatile dimensions and modern design have made it a popular choice for hospitality, multifamily housing, office, healthcare, and commercial restroom projects seeking a contemporary aesthetic.
Refined Specs:
Finish: Classic Gloss White
Collection: Oasis Porcelain
Length: 19.75"
Width: 15.50"
Height: 6.50"
Material: Premium Vitreous China
Basin Style: Flat-Bottom Rectangular Basin
Installation Type: Undermount
Minimum Cabinet Required: 21" inch lavatory cabinet required.
Additional Information / Tags:
Bathroom sink
Undermount sink
Lavatory
Oasis
Rectangular sink
Porcelain sink
Vitreous china sink
Flat bottom sink
Modern bathroom sink
White bathroom sink
Kohler Kathryn replacement
Kohler Verticyl replacement
