Bristan Onza Thermostatic Exposed Shower Valve With Shower Riser Kit - Matt Black

The Bristan Onza shower set is a modern bathroom solution designed to deliver reliable performance, safety, and contemporary style in one complete package. Built using a combination of brass ABS and stainless steel, it offers strength and long lasting durability suitable for daily use. The matt black finish gives it a bold and refined appearance that enhances modern bathroom interiors while maintaining a sleek and understated look. It operates efficiently across a wide pressure range from 0.2 bar to 5.0 bar and is suitable for systems with a maximum static pressure of 10 bar and a maximum hot water temperature of 60C. The shower set features a 15mm compression inlet connection and a G 1/2 outlet connection for standard compatibility. Handset flow rates are carefully balanced, delivering 1.7 litres per minute at 0.2 bar, 5.4 litres per minute at 0.5 bar, 7.6 litres per minute at 1 bar, 8.3 litres per minute at 2 bar, and 8.8 litres per minute at both 3 bar and 5 bar, ensuring a consistent and controlled shower experience.

This shower system is WRAS approved and designed with user safety and convenience in mind, featuring a thermostatic control system with a 42C safety stop and automatic shut off protection to maintain a stable and safe water temperature. In the event of hot or cold water supply failure, the system automatically shuts off to protect the user. It comes supplied with all essential components including a shower valve, hose, hose retainer, riser rail, and a rub clean anti limescale single function handset for easy maintenance and long term performance. The sequential cartridge and adjustable riser provide smooth operation and flexible installation, while adjustable brackets allow for straightforward fitting using existing screw holes, making installation more convenient. The Easyfit design further simplifies the setup process. Overall this shower set combines safety features, durable construction, and modern aesthetics, making it a practical and stylish choice for contemporary bathrooms.

PRODUCT SPECIFICATIONS

• Product SKU: NZA SHXAR BLK
• Shower Set
• Brand: Bristan
• Collection: Onza
• Finish: Matt Black
• Style: Modern
• Material: Brass/ABS/Stainless Steel
• Guarantee: Lifetime
• Inlet Connection: 15mm Compression
• Outlet Connection: G 1/2”
• Minimum Pressure: 0.2 Bar
• Maximum Pressure: 5.0 Bar
• Max. Hot Water Temperature °C: 60°C
• Max. Static Pressure: 10 Bar
• Flow Rate - 0.2 (Handset) Bar: 1.7 L/min
• Flow Rate - 0.5 (Handset) Bar: 5.4 L/min
• Flow Rate - 1 (Handset) Bar: 7.6 L/min
• Flow Rate - 2 (Handset) Bar: 8.3 L/min
• Flow Rate - 3 (Handset) Bar: 8.8 L/min
• Flow Rate - 5 (Handset) Bar: 8.8 L/min
• Isolation Valve Included: No

PRODUCT FEATURES

• WRAS approved product
• Sequential Cartridge, Adjustable Riser
• Thermostatic control with a 42°C safety stop and automatic shut-off protection ensures secure, reliable performance.
• Supplied with everything you need, including shower valve, hose, hose retainer, riser rail and a rub-clean anti-limescale single function handset
• Shower safely with automatic shut-off protection if hot or cold water supply fails
• Effortless fitting with adjustable brackets that reuse existing screw holes
• Easyfit Installation

Download the Technical PDF Here.

This item is a stocked product so delivery typically takes 1-3 working days.

Delivery on orders below £175 is £7.99. Orders over £175 qualify for free delivery.

For more information visit our delivery information page.