Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF (3317003)

Upgrade the Regal flush experience with the Sloan R-1003-A Diaphragm Rebuild Kit

In busy restrooms, dependable flushing and water efficiency matter. The Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit is designed to restore worn diaphragm assemblies to near new performance. Built around a proprietary natural rubber diaphragm with a brass bypass, this kit helps you bring back the reliable action your facility relies on, without guessing about compatibility.

What is inside and what it does

• A-38-A Diaphragm
• Handle Repair Kit
• V-551-A Vacuum Breaker Kit
• Tailpiece O Ring

Designed for Regal 3.5 GPF flushometers, this kit is a targeted replacement that supports the precise flush volumes expected in modern plumbing. If a diaphragm wears over time you may notice variable flush strength or inconsistent water use. This kit can help stabilize performance and reduce waste, aligning with sustainability goals without promising results.

Why choose Sloan Genuine Parts. Sloan parts are built to the companys specifications and tested for compatibility with Regal products. Using Sloan components can help protect the investment and minimize downtime because the parts are designed to work together the way you expect. The diaphragm features a brass bypass that channels water efficiently while the natural rubber provides resilience under heavy use in high traffic restrooms.

Practical benefits you may notice

• Reliable flush performance that matches the original Regal setup
• Potentially lower long term maintenance costs by reducing the need for repeated replacements
• Backed by Sloan legacy as a leading commercial plumbing systems manufacturer

Who this is for

Facility managers, building engineers, and maintenance teams who service high usage restrooms can benefit from a targeted rebuild kit that fits Regal 3.5 GPF models. Before replacing verify that the model matches Regal 3.5 GPF flushometers and that your clamshell matches 33170011 in the compatibility guides to ensure a smooth repair process.

How to use

Shut off water, follow standard safety precautions, and prepare the valve area. The kit lets you replace the diaphragm assembly and related parts in a single service event, helping restore optimal flush behavior with minimal downtime.

Environmental considerations

Using a dedicated rebuild kit supports responsible water use in commercial restrooms by enabling more predictable flush volumes and reducing the need for premature replacements over time. This aligns with a practical approach to maintenance that emphasizes reliability and sustainability.