Metal bathtub mixer set THE KNOT

brasschrome-plated brasswall-mounted

Introduction
COYA reinterprets bathroom architecture through a Squircle language that fuses circle and square. The series offers fluid silhouettes and tactile details designed to create harmonious transitions between differing stylistic environments. COYA is intended for basin, tub and shower applications and is presented by Dornbracht.

Design concept
The COYA family is built on a distinctive Squircle base form that blends the clarity of a square with the softness of a circle. Spout, rosette and handle follow this sculptural geometry to produce a precise yet tactile silhouette. Designed by Sieger Design, COYA emphasises balanced proportions and refined haptic expression.

Key design characteristics

• Squircle geometry: a hybrid form between circle and square defining spout, rosette and handle
• Fluid transitions: seamless connection between shapes and spatial contexts
• Ergonomic handles: gently curved, inviting tactile interaction
• Sculptural silhouette: clear legibility from every viewing angle

Product range & examples
The COYA range supports coordinated bathroom layouts across basin, tub and shower. Examples referenced on the site include:

• COYA Single‑lever basin mixer without pop‑up waste — Art.no.: 33 521 404-00
• COYA Three‑hole basin mixer — Art.no.: 20 713 404-00
• COYA Three‑hole basin mixer with pop‑up waste — Art.no.: 20 713 414-00

Finishes & material options
Available finishes highlight the series' architectural presence. Examples shown include:

• Chrome
• Brushed Platinum (platinum matt)
• Brushed Durabrass (23 kt Gold)
• Brushed Bronze (PVD)
• Brushed Dark Bronze (PVD)
• Dark Chrome
• Dark Platinum (matt)

Atelier / Customisation
COYA is compatible with Dornbracht Atelier custom options. The Atelier Edition expands design expression with sculptural handles and optional gemstone inlays such as amazonite, sodalite and aventurine, turning a functional detail into a personalised design element.

Downloads & printed material (referenced)
Documentation available on the product pages includes a COYA brochure and a trend white paper offering in‑depth insights into design language, architectural concepts, finishes and custom options.

Technical specifications

• Series name: COYA
• Design language: Squircle (fusion of circle and square)
• Designer: Sieger Design
• Applications: Basin, tub and shower fittings
• Customisation: Dornbracht Atelier options; gemstone handle inlays (amazonite, sodalite, aventurine)
• Finishes: Chrome; Brushed Platinum; Brushed Durabrass (23 kt); Brushed Bronze (PVD); Brushed Dark Bronze (PVD); Dark Chrome; Dark Platinum (matt)
• Example item numbers: 33 521 404-00; 20 713 404-00; 20 713 414-00