Understanding the Sloan Royal 111
The Sloan Royal 111 is part of Sloan's Royal family of exposed commercial water closet flushometers. It is a familiar model designation in commercial restrooms, but "Royal 111" does not identify one single valve.
Sloan offers Royal 111 configurations with different flush volumes, activation methods, finishes, and factory options. Two products can therefore carry the Royal 111 name while still being intended for different installations.
Looking beyond the 111 series? Browse all Sloan Royal flushometers to compare other models in the Royal family.
The Most Important Buying Rule
Do not choose a replacement from "Royal 111" alone. Match the complete model designation, required GPF, activation type, fixture requirements, and applicable factory options before ordering.
Compare Sloan Royal 111 Configurations
The product listings above show current models and live pricing. Use the comparison below to narrow the type of Royal 111 you need before comparing individual model numbers.
| Royal 111 Type | Activation | Common GPF | What to Look For |
| Standard Royal 111 |
Manual |
1.1, 1.28 or 1.6 GPF depending on model |
Confirm the complete model number, flush volume, rough-in, finish, and any suffixes. |
| Royal 111 Sensor |
Electronic sensor |
Varies by configuration |
Check battery vs. hardwired power, sensor configuration, override options, and GPF. |
| Royal 111 Special-Option Models |
Manual or sensor |
Varies |
Suffixes may identify special finishes, side-mount sensors, overrides, trap primers, antimicrobial treatments, reclaimed-water configurations, or other factory options. |
The exact features and available options depend on the individual Sloan model. Use the complete product designation and current product specifications when making a final selection.
Sloan Royal 111 Flush Volumes
Flush volume is one of the first specifications to check when comparing Royal 111 models. Common Royal 111 configurations include 1.1, 1.28, and 1.6 gallons per flush.
| Flush Volume | Typical Application | What to Check |
| 1.1 GPF |
High-efficiency commercial water closet installations |
Confirm the fixture is designed to operate at 1.1 GPF. |
| 1.28 GPF |
Common high-efficiency commercial water closet applications |
Verify the fixture requirement and complete Royal 111 model designation. |
| 1.6 GPF |
Traditional commercial water closet installations and replacements |
Do not substitute a different GPF unless the fixture is designed for it. |
Always match the flushometer's flush volume to the requirements of the water closet fixture. A Royal 111 with a different GPF is not automatically an interchangeable replacement.
How to Choose the Correct Sloan Royal 111
If you already know that you need a Royal 111, the remaining job is identifying the exact configuration. These are the specifications we would check first:
| What to Check | Why It Matters |
| Complete model designation |
Additional numbers and suffixes can identify important factory options and configuration differences. |
| Gallons per flush |
The flushometer must match the required flush volume of the commercial water closet. |
| Manual or sensor activation |
Royal 111 configurations are available in traditional manual and electronic sensor-operated versions. |
| Power source |
Sensor-operated Royal 111 models may use different power and control configurations. |
| Fixture application |
Royal 111 models are designed for commercial water closets. Confirm compatibility with the actual fixture. |
| Finish and factory options |
Products sharing the Royal 111 family designation may still have different finishes, controls, or option packages. |
Manual vs. Sensor Sloan Royal 111 Flushometers
One reason the Royal 111 lineup can be confusing is that the family includes more than one type of activation.
Manual Royal 111
Traditional Royal 111 models use Sloan's diaphragm-operated flushometer design with manual activation. Depending on the exact configuration, Royal models can include an adjustable tailpiece, vandal-resistant components, and Sloan PERMEX diaphragm technology.
Sensor Royal 111
Sloan also offers Royal 111 sensor configurations for touch-free commercial restroom operation. Sensor models should be treated as distinct configurations rather than interchangeable versions of a manual Royal 111.
Why Are There So Many Sloan Royal 111 Model Numbers?
Sloan uses additional letters, numbers, and suffixes to identify specific configurations. As a result, several products can all appear to be a "Sloan Royal 111" while differing in ways that matter to the installation.
Those differences can include:
- Flush volume
- Manual or sensor activation
- Battery-powered or hardwired sensor operation
- Finish
- Control-stop configuration
- Side-mount sensor configurations
- Override options
- Trap-primer configurations
- Reclaimed-water configurations
- Other factory options
Example
A Royal 111-1.28 identifies a 1.28 GPF Royal 111 configuration. Additional suffixes can identify further options. When replacing an existing valve, compare the complete designation whenever possible rather than assuming every Royal 111 is interchangeable.
Common Sloan Royal 111 Features
Exact specifications depend on the individual product, but Royal 111 configurations can include many of the features associated with Sloan's commercial Royal flushometer platform:
- Exposed commercial water closet flushometer design
- Diaphragm valve technology
- Multiple flush-volume options
- Manual and sensor-operated configurations
- Adjustable tailpiece on applicable models
- Vandal-resistant components on applicable models
- PERMEX diaphragm technology on applicable models
- Commercial brass construction
- Multiple finishes and factory configurations
Replacing an Existing Sloan Royal 111
Many customers searching for Royal 111 are not specifying a new restroom from scratch. They already have an existing Sloan valve and need to identify the correct replacement.
If your existing flushometer says ROYAL 111, that gets you into the correct product family, but it may not be enough information to order the replacement.
Before Ordering a Replacement
Verify the complete model designation, GPF, activation type, power requirements if applicable, fixture requirements, existing installation, and any visible model suffixes or special options.
If the original model information is incomplete or difficult to identify, ProDryers can help compare the existing valve and fixture with currently available Sloan Royal 111 configurations.
Royal 111 vs. Other Sloan 111 Flushometers
The number 111 does not identify the Royal product line by itself. Sloan also uses 111 designations within other flushometer families.
For example, a Regal 111 and a Royal 111 are separate products even though both contain "111" in the model name.
If your existing valve is specifically marked ROYAL, use the complete Royal model information when researching a direct replacement rather than searching only for "Sloan 111."
Not sure whether Royal is the correct Sloan family? Compare the broader selection of Sloan Royal flushometers before narrowing your selection to the Royal 111 series.
Questions We Ask When Helping Identify a Royal 111
| Question | Why It Matters |
| What is the complete model number? |
This is the fastest way to distinguish one Royal 111 configuration from another. |
| What GPF does the fixture require? |
The flushometer and water closet must be designed to operate at the same flush volume. |
| Is the existing valve manual or sensor operated? |
Activation type substantially narrows the correct Royal 111 configuration. |
| If it is electronic, how is it powered? |
Battery and hardwired configurations are not automatically interchangeable. |
| Is this a replacement or a new installation? |
Replacement projects require careful comparison with the existing fixture and valve, while new projects can be matched directly to the fixture specification. |
| Are there suffixes after the Royal 111 designation? |
Suffixes can identify additional factory features and should not be ignored when selecting a replacement. |
Why Buy Sloan Royal 111 Flushometers From ProDryers?
ProDryers specializes in commercial restroom equipment and has been helping customers identify, compare, and purchase commercial products since 2003.
With Sloan flushometers, the challenge is often not finding something labeled "Royal 111." The challenge is identifying which Royal 111 configuration is actually correct.
Our team can help compare model designations, flush volumes, activation types, fixture requirements, and available configurations before you order. That can be especially useful when replacing an older Sloan valve where the original model information may be incomplete or difficult to read.
Buying multiple flushometers for a commercial project? Contact ProDryers for quantity and project pricing.
Frequently Asked Questions About Sloan Royal 111 Flushometers
What is a Sloan Royal 111?
A Sloan Royal 111 is an exposed commercial water closet flushometer in Sloan's Royal product family. Multiple Royal 111 configurations are available, so the complete model designation should be checked when selecting or replacing a valve.
Is a Sloan Royal 111 for a toilet or urinal?
Royal 111 models are designed for commercial water closets. Sloan uses other model designations for urinal flushometers.
What GPF is a Sloan Royal 111?
There is not one universal Royal 111 flush volume. Common configurations include 1.1, 1.28, and 1.6 GPF. Always verify the complete model specification and fixture requirements.
Are all Sloan Royal 111 flushometers interchangeable?
No. Royal 111 models can differ in flush volume, activation type, power configuration, finish, and factory options. Match the replacement to the fixture and existing installation rather than relying only on the Royal 111 family name.
Is the Sloan Royal 111 available as a sensor flushometer?
Yes. Sloan offers Royal 111 sensor configurations in addition to traditional manual Royal 111 flushometers.
What does 111 mean on a Sloan flushometer?
The 111 designation is used for a commercial water closet flushometer configuration within multiple Sloan product families. The complete product name matters because a Royal 111 and Regal 111 are not the same valve.
How do I know which Sloan Royal 111 I have?
Look for the complete model designation, flush volume, activation type, and any additional suffixes or markings. On electronic models, also determine whether the unit is battery powered or hardwired.
Can ProDryers help identify my existing Royal 111?
Yes. If the complete model is unclear, provide as much information as possible about the existing flushometer, fixture, flush volume, activation type, and installation. Our team can help compare it with currently available Royal 111 options.
Need Help Choosing a Sloan Royal 111?
Choosing the correct Royal 111 involves more than matching the words on the valve. ProDryers can help you compare model numbers, flush volumes, activation types, fixture requirements, and replacement options.
Replacing an Existing Royal 111?
Send us the complete model information before guessing. The closer we can get to the original designation and fixture requirements, the easier it is to identify the correct replacement.