Upgrade your shower system with the Fortis VALVE691 1/2" Thermostatic Rough-In Valve, engineered for precision temperature control, maximum safety, and superior reliability. This Italian-made thermostatic valve is the foundation of many premium Fortis shower systems and is built for long-term performance in modern luxury bathrooms.

Featuring 1/2" NPT connections, a thermo control cartridge, and an included test plug, the VALVE691 ensures a smooth installation process and dependable temperature regulation. With a strong 5.5 GPM flow rate, this valve supports multi-outlet shower installations including hand showers, rainheads, and body sprays (where local code permits).

Its heavy-duty rough brass construction, advanced thermostatic engineering, and lifetime-warrantied mechanical components make this valve a trusted choice for homeowners, contractors, and high-end remodelers.

Whether you're building a custom shower or upgrading an existing system, the VALVE691 provides the comfort, safety, and control expected from premium European craftsmanship.

🧩 Key Features

• ✔ 1/2" Thermostatic Rough-In Valve
• ✔ Thermo control cartridge included
• ✔ 1/2" NPT connections for universal compatibility
• ✔ Flows 5.5 GPM @ 60 PSI — supports multi-outlet use
• ✔ Test plug included for pressure & leak testing
• ✔ Step-by-step installation instructions included
• ✔ Rough brass body for durability
• ✔ Made in Italy
• ✔ Limited Lifetime Warranty
• ✔ Compatible with Fortis thermostatic trim kits

📐 Specifications

🛡 Warranty Summary (Shopify Friendly)

Residential:

• Limited Lifetime Warranty on mechanical components
• Limited Lifetime Warranty on finishes
• Covers defects in materials & workmanship under normal use

Commercial:

• 1-year mechanical warranty
• 1-year finish warranty

Excludes:
Improper installation, misuse, harsh cleaners, excessive water pressure, labor costs, or non-Fortis connected accessories.

🏢 About Fortis 

Fortis products are 100% made in Italy using premium brass, advanced machining, PVD finishing, and strict quality control. Every component is built for luxury performance, reliability, and long-lasting durability. Fortis is backed by 60+ years of European craftsmanship through Paini, one of Italy’s leading plumbing manufacturers.

Download Specifications Data Sheet

Download Installation Guide

Download Care Instructions