GROHE GrohSafe 3.0 Shower Rough-in Valve: Precision Engineering for Effortless Installation

Designed with both plumbers and homeowners in mind, the GROHE GrohSafe 3.0 Shower Rough-in Valve simplifies shower system installations, even in challenging spaces. Its compact, corrosion-resistant DZR brass body ensures long-lasting durability, making it ideal for environments with prolonged water exposure. The flat-back design guarantees a secure, flush mount against standard cross braces, while its adaptability allows for sturdy installation on thin walls or steel surfaces without compromising stability.

This valve stands out with its wide rough-in range (1-3/4″ to 2-3/4″), accommodating varying wall thicknesses and simplifying retrofits. The integrated service stops enable quick maintenance or repairs without shutting down the entire water supply. A stainless steel retaining ring secures the flush plug and cartridge firmly in place—no screws required—streamlining assembly and reducing potential leaks.

Testing and flushing lines is hassle-free thanks to the included flush plug, which works seamlessly with air (200 psi) or water (300 psi) pressure. The exclusive plaster guard doubles as a protective cover during installation and a mounting guide, ensuring precision every time. For added flexibility, the valve supports back-to-back hot/cold reversal, allowing easy adjustments to fit your plumbing layout.

Perfect for new builds or renovations, the GrohSafe 3.0 combines reliability, ease of use, and professional-grade performance. Whether you’re a DIY enthusiast or a seasoned plumber, this valve delivers unmatched convenience and peace of mind.

Cartridge sold separately; ships with trim for immediate use.