House of Rohl 3/4″ Thermostatic & Pressure Balance Rough-In Valve Multi-Function System Unfinished R46

Upgrade your custom shower with the House of Rohl 3/4″ Thermostatic & Pressure Balance Rough-In Valve Multi-Function System (R46), a premium rough-in valve engineered to deliver exceptional performance, simplified installation, and personalized comfort. Designed for sophisticated residential bathrooms, this advanced valve combines thermostatic and pressure balance technologies into a single solution, providing reliable water temperature control while supporting multiple shower functions from one streamlined system.

Unlike traditional installations that require separate shut-off and diverter valves, the R46 integrates volume control, temperature memory, and multi-function capability within a single valve body. This innovative design reduces wall clutter, minimizes plumbing complexity, and creates a cleaner, more refined shower aesthetic. Homeowners and professional installers alike benefit from a simpler installation process while maintaining maximum flexibility for luxury shower configurations.

The valve’s temperature memory feature allows users to set their preferred water temperature once and enjoy consistent comfort every time they shower. Combined with pressure balance technology, it helps maintain stable water temperature even when water demand changes elsewhere in the home, enhancing both comfort and safety for everyday use.

Designed for larger, spa-inspired bathrooms, the R46 supports up to six shower functions and can operate two shower systems independently, making it ideal for dual-user “his and hers” shower layouts. Whether paired with overhead showerheads, handshowers, body sprays, or multiple spray outlets, the valve delivers the versatility needed for a truly customized shower experience. Its impressive 10 GPM (38 LPM) flow rate at 60 PSI provides generous water delivery for immersive, full-body performance.

Built with solid brass construction, the House of Rohl R46 offers outstanding durability, corrosion resistance, and long-term reliability. The robust design is engineered to withstand years of daily use while maintaining dependable performance in demanding residential environments.

For installers, thoughtful service features make maintenance easier and more efficient. The integrated service stops allow the valve to be serviced without shutting off water to the entire home, reducing downtime during maintenance. Additionally, the included test cap enables plumbers to pressure-test valve connections before trim installation, helping protect the internal cartridge from damage during construction.

The valve features a 3/4″ NPT inlet connection and is compatible with all Perrin & Rowe®, Riobel®, and ROHL® trim kits ending in -46 (sold separately), allowing homeowners to select the perfect trim style to complement their bathroom design.

Finished in unfinished brass for concealed installation, the House of Rohl R46 provides the dependable foundation required for premium multi-function shower systems. Backed by a limited lifetime warranty, it delivers lasting confidence, exceptional performance, and the flexibility to create a luxurious, personalized shower experience for modern Canadian homes.