Item Description

The Moen 63170 M-Pact Posi-Temp Rough-In Valve is a dependable plumbing component designed for smooth water temperature and pressure control in any shower system. CPVC connections offer easier installation, reduced corrosion risk, and long-term durability.

Reliable Moen Posi-Temp Technology

This valve keeps water temperature stable, even when household pressure changes. No more sudden temperature spikes — just consistent comfort.

M-Pact Modular System

Designed to allow future trim upgrades without replacing the valve behind the wall. Swap out handles and trims anytime for a new style without major plumbing work.

Durable Brass & CPVC Construction

Built to resist wear, corrosion, and high water pressure. The CPVC connections offer a secure fit and long-lasting performance.

Perfect for New Installs & Replacements

Whether you’re updating a bathroom or installing a new shower, this valve fits most Moen trim kits and guarantees smooth operation.

Ease of Installation

Compact design fits standard wall cavities, and the mounting tabs help secure the valve during installation.

Why Buyers Choose This Model

• Trusted Moen durability

• Compatible with all Moen M-Pact trims

• Stable and safe temperature regulation

• Ideal for CPVC plumbing systems

• Future-proof design

Best For:

✔ Bathroom remodels
✔ New shower installations
✔ Replacing outdated or leaking valves
✔ Homeowners wanting long-term quality