Larsen Supply Co., Inc. S-764-3 Shower Stem Cartridge

Product Description

The LARSEN SUPPLY CO., INC. S-764-3 is a Posi-Temp shower stem cartridge designed as a direct replacement for the Moen 0519 cartridge. This component regulates hot and cold water flow and temperature inside a Posi-Temp single-handle shower valve body. It is a wear item that plumbers and service techs replace when a valve drips, fails to hold temperature, or becomes difficult to operate. The cartridge ships individually and weighs 1.19 pounds packaged. Installation requires no special tools beyond standard plumbing hand tools and proper water shutoff before service.

This cartridge is suited for residential shower repair applications where a Posi-Temp valve is installed. The Posi-Temp design limits maximum water temperature, making it common in code-required scald-prevention installations. Service plumbers typically encounter this part during routine valve rebuilds, drip repairs, or full cartridge replacements in single-handle tub and shower trim setups. It is sold individually, one cartridge per card, and is also available in case quantities of six units for service fleets stocking common replacement parts.

Key Features

• Direct replacement for Moen 0519 Posi-Temp shower stem cartridge
• Controls both hot and cold water flow within a single-handle Posi-Temp valve body
• Sold individually, one per card, with case quantity of six available
• Designed for scald-protection Posi-Temp valve assemblies common in residential shower systems

Compatibility

Designed as a replacement for the Moen 0519 Posi-Temp shower stem cartridge in single-handle Posi-Temp shower valve applications.

Installation Notes

Installation should be performed by a licensed plumber. Shut off the water supply to the shower valve before beginning any cartridge removal or installation. Follow local plumbing codes, including applicable IPC requirements for shower valve service. Do not force the cartridge during insertion, as improper seating can result in leaks or valve malfunction.