Wairool RP19804 cartridge exterior shows durable housing for reliable shower replacement.
Wairool RP19804 filter element detail highlights built-in filtration for clearer water.
Wairool Delta-compatible label confirms fit with select Monitor valves before 2007.
Wairool temperature balance demo illustrates stable hot-cold transition for comfortable showers.
Wairool brass-plastic construction underscores durability and long-term performance.
Wairool installation handle shot highlights easy cartridge replacement without full valve replacement.
Wairool shower flow test demonstrates steady pressure and smooth output.
Wairool bonnet nut kit RP22734 included for quick pre-installation adjustments.

Wairool

Wairool RP19804 Shower Cartridge for Delta 1300/1400 Monitors (1993–2007)

High-performance tools and home improvement made for confident daily results

$26.28

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Why customers choose TaskHolt Tools

Overview

Upgrade your shower with the Wairool RP19804 cartridge, a purpose-built replacement for Delta 1300/1400 series single-lever monitor valves installed before 2007. It helps maintain a balanced flow and reduces temperature swings, allowing you to enjoy consistent showering conditions without replacing the entire valve.

Designed to align with select Monitor valves from 1993 to 2007, this cartridge is not intended for the 13/14 series. This specificity helps you choose a replacement that fits your existing hardware and preserves the original control feel.

Key benefits

  • Single-function pressure balance ensures more stable hot and cold water control, targeting a comfortable shower experience.
  • Temperature control accuracy: water temperature stays within about ±3.6°F (±2°C), reducing sudden changes during showers.
  • Durable construction using sturdy plastic and brass components, paired with a reliable filter element for cleaner water flow.

What you get and how it works

The RP19804 cartridge, paired with the RP22734 bonnet nut kit, is designed to fit Delta 1300/1400 series valves predating 2007. The replacement focuses on the cartridge itself, allowing you to repair leaks and restore performance without a full valve replacement.

Installation and maintenance tips

  • Easy installation: swap the old cartridge for RP19804 to restore function without disassembling the entire faucet assembly.
  • Before inserting the new cartridge, clean the surrounding area of contaminants, and inspect the temperature handle and shower head for clogs or buildup, which can affect flow and temperature.

Real-world use scenarios

  • Renovating a bathroom with an older Delta valve to regain reliable temperature control and consistent spray.
  • Extending the life of a pre-2007 shower system by replacing only the cartridge instead of the full valve.
  • Achieving water efficiency through a stable flow and reduced temperature fluctuations during showers.

Care and compatibility notes

Carefully verify your valve model and series before purchase. The RP19804 is not compatible with 13/14 series Delta Multi-Choice valves introduced after 2007.

FAQ

Q: Is the Wairool RP19804 cartridge compatible with Delta 1300/1400 valves built after 2007?

A: The RP19804 is designed for pre-2007 Delta 1300/1400 monitor valves and is not compatible with 13/14 series.

Q: What installation considerations should I know before replacing the RP19804 cartridge?

A: Turn off water, remove the old cartridge, clean the area, check for clogs, reinstall with proper orientation, and test temperature and flow.

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