The best commercial urinal flush valve depends on the fixture’s flush volume, inlet connection, and installation layout. The Sloan Regal 186 1.0 GPF is a straightforward choice for standard-volume urinal flushing, while its 0.5 GPF version is designed for lower-volume applications. The American Standard Ultima suits urinals with a 3/4-inch exposed top spud, and the Zurn Aquaflush includes a sweat solder kit. One listed Sloan product is for water closets, not urinals, so it is included only to clarify the distinction.
| Product | Best For | Listed Flush Volume |
|---|---|---|
| Sloan Regal 186 | Standard-volume urinals | 1.0 GPF |
| Sloan Regal 186 | Lower-volume urinals | 0.5 GPF |
| American Standard Ultima | 3/4-inch exposed top spud | Not specified |
| Zurn Aquaflush | Specified spud and solder-kit setup | 1.0 GPF |
| Sloan Regal 111 | Water closets, not urinals | 1.6 GPF |
Sloan Regal 186 1.0 GPF Urinal Flushometer
The Sloan Regal 186 is an exposed manual urinal flushometer rated at 1.0 gallons per flush. It has a non-hold-open handle and no external volume adjustment, features intended to prevent excessive water use. Its vacuum breaker flush connection is specified to help prevent backflow.
Best for: Facilities replacing or specifying a manual urinal valve that calls for 1.0 GPF. It is a practical comparison point for buyers who want the same listed flush volume as the Zurn option but do not need the Zurn product’s specified sweat solder kit.
Limitation: Confirm the urinal’s connection and installation requirements before ordering; the product details provided do not specify all rough-in dimensions.
Sloan Regal 186 0.5 GPF Urinal Flushometer
This Sloan Regal 186 version is listed at 0.5 GPF. Like the 1.0 GPF model, it has a non-hold-open handle, no external volume adjustment, and a vacuum breaker flush connection. The lower stated volume makes it the lower-flush-volume choice among the listed urinal valves.
Best for: Buyers whose urinal and plumbing specifications call for a 0.5 GPF manual flushometer. Choose it over the 1.0 GPF model only when that flush volume is appropriate for the fixture and installation.
Limitation: The product information does not provide fixture compatibility details beyond identifying it as a urinal flushometer, so verify the required flush volume and connection before purchase.
American Standard Ultima Piston-Type Urinal Valve
The American Standard Ultima is a manual piston-type flush valve for urinals with a 3/4-inch exposed top spud. Its DynaClean self-cleaning wiper spring cleans the refill orifice with each flush, a feature intended to help prevent valve run-on.
Best for: Buyers who have confirmed their urinal uses the specified 3/4-inch exposed top spud and want the listed self-cleaning wiper-spring design. That connection detail makes it easier to compare against models with other installation specifications.
Limitation: The provided product details do not state its gallons-per-flush rating. Check that the valve’s flush volume matches the fixture and project requirements before selecting it.
Zurn Aquaflush 1.0 GPF Manual Valve
This Zurn Aquaflush is an exposed manual diaphragm flush valve for a 3/4-inch urinal, listed at 1.0 GPF. Its specified installation details include an 11-1/2-inch rough-in, a 3/4-inch top spud, an exposed sweat solder kit, and a polished chrome-plated cast wall flange.
Best for: Buyers whose layout matches those stated dimensions and who need the listed solder-kit configuration. Compared with the Sloan 1.0 GPF model, the Zurn listing gives more specific rough-in and included-configuration details.
Limitation: The stated dimensions are important constraints. Verify the existing rough-in and spud before choosing this valve.
Sloan Regal 111 Water Closet Flushometer
This Sloan Regal 111 is a 1.6 GPF manual water closet flushometer, not a urinal valve. Its non-hold-open handle and lack of external volume adjustment are described as water-conservation features. It also has a vacuum breaker flush connection.
Best for: Buyers comparing commercial restroom flushometers who need a water closet model rather than a urinal valve. It is included to distinguish fixture types, not as a recommended urinal replacement.
Limitation: Do not select it for a urinal installation; the listing identifies it as a water closet flushometer.
Buying Guide: How to Choose a Commercial Urinal Flush Valve
What flush volume does the fixture require?
Start with the urinal manufacturer’s specifications and the existing valve’s flush-volume rating. The listed Sloan models offer 1.0 GPF and 0.5 GPF choices, while the Zurn is listed at 1.0 GPF. The American Standard product details provided do not state a GPF figure. Do not assume that a lower-volume valve is suitable for every urinal.
Which connection and rough-in details should you check?
Compare the valve’s listed top-spud size and rough-in with the fixture and plumbing already installed. The American Standard specifies a 3/4-inch exposed top spud. The Zurn specifies a 3/4-inch top spud and an 11-1/2-inch rough-in. Confirm these measurements before purchasing, especially when replacing an existing valve.
Should you choose a piston or diaphragm valve?
The American Standard is identified as piston-type, while the Zurn is identified as diaphragm. The listings do not provide enough information for a broad performance comparison between these mechanisms. Use the specified mechanism only as one selection detail, alongside flush volume, fixture fit, and installation requirements.
What features affect water use and maintenance?
The Sloan Regal 186 models have non-hold-open handles and no external volume adjustment, which the product details describe as helping prevent excessive water use. The American Standard’s wiper spring cleans the refill orifice with each flush to help prevent run-on. These features address different concerns, so compare them against the facility’s priorities.
How can you avoid a fixture mismatch?
Confirm whether the flushometer is intended for a urinal or a water closet. A water closet valve, such as the Sloan Regal 111 listed here, should not be treated as a urinal valve. Also check the connection, flush-volume requirement, and any included installation components before ordering.
Frequently Asked Questions
What is the difference between a urinal flush valve and a water closet flushometer?
They are intended for different fixtures. Check the product listing and fixture specifications; the Sloan Regal 111 listed above is for a water closet, not a urinal.
Which listed urinal valve uses 0.5 GPF?
The Sloan Regal 186 0.5 GPF model is the listed lower-volume urinal option.
Which products specify a 3/4-inch top spud?
The American Standard Ultima and Zurn Aquaflush product details specify a 3/4-inch top spud.
Does the American Standard Ultima listing state its flush volume?
No. The provided product details do not specify its gallons per flush, so confirm that information before purchase.