Edifla 10350-NA Extension Deep Rough Kit – 3-4 Inch Depth, Kohler GP800881, K-8305, K-28305 & Rite-Temp

Overview

Meet the Edifla 10350-NA Extension Deep Rough Kit, a compact retrofit solution for situations where a shower valve sits deeper in the wall. Designed for compatibility with Kohler GP800881, K-8305, and K-28305 cartridges, as well as Rite-Temp shower valves, this kit offers a reliable 3/4 inch extension to align the cartridge with standard trims and finishes.

Whether you’re updating an old valve or reconfiguring a bathroom during a remodel, this extension kit provides a practical way to optimize space behind the wall while preserving the look of existing fixtures.

Key Benefits

• Universal compatibility across Kohler cartridges and Rite-Temp valves, reducing the need for multiple parts.
• Depth adjustment: adds 3/4 inch of rough-in depth for flexible retrofits.
• Durable materials: sturdy brass combined with high-quality plastic for long-lasting performance.
• Non-invasive installation: typically does not require tile or wall removal, saving time and effort.
• DIY-friendly: clear installation instructions help you complete the setup without professional help.

Real-Life Use Cases

During renovations, the valve can end up farther back in the wall than the trim was designed for. This kit offers a straightforward way to reposition the cartridge without tearing out surrounding walls, making it suitable for valve upgrades or updating to compatible cartridges while keeping the existing surround intact.

What You Receive

• Deep rough-in kit with all required components
• Brass and plastic construction for durability
• Black finish to blend with most shower fixtures

Quality and Support

Engineered for humid bathroom environments, the Edifla extension kit supports reliable retrofits. The universal design minimizes compatibility concerns, and the included instructions guide a smooth, do-it-yourself installation.