House of Rohl R45 1/2″ Thermostatic & Pressure Balance Rough-in Valve with Up to 5 Functions Unfinished

Description

Upgrade your custom shower system with the House of Rohl R45 1/2″ Thermostatic & Pressure Balance Rough-in Valve, a premium concealed valve engineered to deliver outstanding comfort, safety, and installation efficiency. Designed for high-end residential and luxury bathroom projects, this advanced rough-in valve combines thermostatic and pressure balance technologies into a single compact unit, giving homeowners and installers a simplified solution without compromising performance.

Unlike traditional shower valve configurations that require multiple components, the R45 integrates volume control, temperature memory, and multi-function capability into one valve. This innovative design eliminates the need for separate shut-off or diverter valves, reducing plumbing complexity while creating a cleaner, more streamlined shower wall. The result is a sophisticated bathroom aesthetic with fewer visible trim components and improved functionality.

One of the standout features of the R45 is its set-it-and-forget-it temperature memory. Once your preferred water temperature is selected, the valve remembers your setting, allowing for a consistently comfortable shower experience every time. By combining thermostatic precision with pressure balance protection, the valve maintains stable water temperature even when household water demand changes, helping reduce unexpected temperature fluctuations.

Built for highly customized shower environments, the valve supports up to five individual shower functions, allowing three independent outlets while operating two simultaneously. Whether you’re designing a spa-inspired shower featuring a rainfall showerhead, handshower, body sprays, or additional outlets, the R45 provides the flexibility needed to create a personalized bathing experience.

Engineered for professional installation, the valve features a 1/2″ NPT recommended inlet connection and includes several installer-friendly enhancements. The integrated service stop allows maintenance without shutting off the water supply to the entire home, while the test cap enables plumbers to pressure-test connections before the valve cartridge is installed, helping protect critical internal components during construction.

Manufactured from solid brass, the House of Rohl R45 offers exceptional durability, corrosion resistance, and long-term reliability. Its unfinished rough-in design is intended for concealed installation behind the finished wall and is fully compatible with Perrin & Rowe®, Riobel®, and ROHL® trim kits ending in -45 for shared functionality and -47 for non-shared functionality (trim sold separately), providing flexibility across multiple premium bathroom collections.

With an impressive flow rate of 6.3 GPM (24.9 LPM) at 60 PSI, the valve delivers the water volume required to operate multiple shower outlets for a luxurious, immersive experience. Whether you’re renovating a master ensuite or building a custom luxury bathroom, the House of Rohl R45 provides dependable performance, simplified installation, and advanced shower control.

Backed by a limited lifetime warranty, this premium rough-in valve offers lasting confidence for homeowners, designers, and professional installers seeking reliable performance and exceptional quality for modern bathroom projects throughout Canada.