RP46074 Shower Valve Cartridge Assembly Compatible for 13/14 Series

In this review of the RP46074 shower valve cartridge assembly, the bottom line is clear: this replacement part is aimed at DIYers and plumbers who need a cost-effective pressure balance repair for single-handle 13/14 series tub and shower faucets. The reviewer found it especially useful when a leaky or temperature-fluctuating valve needs a targeted fix without replacing the entire fixture. Installation is straightforward for anyone comfortable with basic plumbing, and the assembly delivers reliable temperature stability in normal household conditions.

Key Features

• Compatibility: Designed for RP46074 and compatible rough-ins (R10000, R1100, R1800, R2200), it fits many single-handle 13/14 series faucets so you can repair rather than replace the whole faucet.
• Pressure balance design: The cartridge provides single-function pressure balance temperature control that helps keep temperature variations within a safe range of about 3.6F (2C) to protect against sudden hot or cold shocks.
• Durable construction: The one-piece plastic structure is engineered to extend service life while remaining corrosion resistant and affordable compared with OEM metal cores.
• Easy to install: The assembly is intended for straightforward installation to repair leaking faucets without removing the entire fixture, saving time and effort for DIY repair.
• Water and cost savings: By restoring proper valve function, the cartridge can reduce wasted water from drips and lower the need for a costlier full faucet replacement.

Who It's For

The RP46074 cartridge is best for homeowners, rental property managers, and handymen who face a leaking single-handle tub or shower and want a low-cost, practical repair. It is suited to installations using rough-ins like R10000, R1100, R1800, and R2200 and other 13/14 series single-handle faucets that accept this cartridge pattern.

It is not for those with 1300/1400 series faucets, or for users who require multi-function diverter cartridges or a metal OEM replacement for high-end fixtures. If precise OEM fit certainty or premium metal internals are essential, a direct manufacturer part may be preferable.

Pros & Cons

Pros

• Affordable way to fix leaks and restore pressure-balanced temperature control without full faucet replacement.
• Pressure balance feature helps prevent sudden hot or cold water changes while showering.
• Simple plastic one-piece design resists corrosion and is easy for a competent DIYer to install.
• Compatible with common rough-in models, increasing usefulness across multiple faucet repairs.

Cons

• Some users report fit and quality variation compared with OEM parts, so careful model confirmation is required before purchase.
• Plastic construction, while durable, may be less robust than metal OEM cartridges in very high-use or commercial settings.

Specifications

Our Verdict

The RP46074 shower valve cartridge assembly is a pragmatic, value-focused repair part for homeowners and maintenance pros needing to restore pressure-balanced temperature control in 13/14 series single-handle showers. It saves money versus full faucet replacement and is easy to install for those comfortable with basic plumbing, but buyers should confirm model fit and accept that plastic internals differ from metal OEM options.

Frequently Asked Questions

Will this fit my Delta single-handle shower?
It fits many common rough-ins like R10000, R1100, R1800, and R2200 used in 13/14 series single-handle faucets; verify your rough-in model before buying.

Does this cartridge control sudden temperature changes?
Yes, the pressure balance design is intended to keep temperature swings within about 3.6F (2C) to reduce hot or cold shocks.

Is installation difficult?
Installation is straightforward for DIYers familiar with faucet disassembly, but clean the valve area of debris before inserting the new cartridge.