Moen 8370HD 1/2 Inch Sweat (Copper-to-Copper) Posi-Temp Pressure Balancing Rough-In Valve (No Stops)

- Item #: BCI1908312

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Product Features:

  • Valve is constructed of brass ensuring durability and dependability
  • Covered under Moen's 5-year limited warranty
  • Posi-Temp® pressure balancing valve maintains water pressure and controls temperature
  • Designed for sweat (CC) inlet / outlet connections
  • Integrated service stops allow you to turn water off at the valve
  • Back-to-back installation capabilities
  • Sturdy mounting bracket included with valve
  • Note: This is the rough-in valve only - valve trim is required to complete product

Product Technologies / Benefits:

    • Posi-Temp® Valve: A pressure balancing valve that maintains water temperature within 3° F. Built-in temperature limit stops allow you to control how far the handle rotates, in effect controlling the range of water temperature. The Posi-Temp® offers the best water flow available for any comparable valve.

Product Specifications:

  • Connection Size: 1/2"
  • Connection Type: Sweat (also known as "CC")
  • Cartridge Included: 1222HD
  • Number of Ports: 4


  • 8370HD: This model
  • 8371HD: Sweat (CC) connections, with stops
  • 8372HD: IPS connections, with stops
  • 8373HD: PEX connections, with stops
  • 8374HD: CPVC connections, with stops
  • 8375HD: Uponor (PEX) connections, with stops

Different Types of Valve Inlet / Outlet Connections:

Inlet Types

Additional Moen Links

Our SKU: Moen 8370HD

This product is listed under the following manufacturer number(s):

  • Moen 8370HD

*Denotes a finish or option that has been discontinued

Installation Resource Center

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Moen 8370HD Reviews

Rated 5 out of 5 by from Great Moen Positemp Valve! Plumbed this roughin valve for new Shower install. Included Moen "3360 transfer" valve to control shower head and hand wand. Works as published to hold discharge water temperature constant. Could not feel any temperature change when toilet was flushed, or lavatory faucet opened! Client was so happy! See picture of install with Copper tube. The 270 deg handle movement is very smart to control precise water temperature! Client hated old Delta faucet with 45 deg temperature select range. I plan to use this same valve setup on new installations with my Handyman service.
Date published: 2013-11-20

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