The Sloan ROYAL 9603-1.28-RB is a manual diaphragm-type flush valve for a water closet. It delivers 1.28 gallons per flush, with a rear spud connection at a concealed body. It features a semi-red brass body and a high-chloramine-resistant permex diaphragm seat.
Sloan ROYAL 9603 concealed manual flushometer built for rough environments with PERMEX chloramine-resistant internal components.
Base configuration: no option suffixes on this model number (ROYAL 9603-1.28-RB).
Features
- 1.28 gpf, Rough Brass Finish, Fixture Connection Rear Spud, Single Flush
- Royal®, Regal® and Sloan® Prison Flushometers feature all the performance benefits of standard concealed, diaphragm model Flushometers with added durability to withstand rough environments
- Flush volumes as low as 1.28 gpf/4.8 Lpf meet water-efficiency goals
- Choose from Flushometers intended for use with stainless-steel fixtures from various manufacturers
- Diaphragm, handle packing, stop seat and vacuum breaker molded from PERMEX® rubber compound for chloramine resistance
- Vandal-proof, push button operation with ADA-compliant fixture wall or panel-mount actuator options on select models
- Non-hold-open feature keeps fixture from surpassing intended water consumption Adjustable tailpiece accommodates various installations
- PERMEX® Synthetic Rubber Diaphragm with Dual Filtered Fixed Bypass
- Valve body, Cover, Tailpiece and Control Stop shall be in compliance with ASTM Alloy Classification for Semi-Red Brass
- Valve shall be in compliance to the applicable sections of ASSE 1037
Common Questions
- What fixture and flush volume is this valve for?
- Per Sloan's own spec, it serves a water closet, 1.28 gallons per flush, a rear spud connection.
- Is this exposed or concealed, and does it need a wall box?
- Concealed -- the body sits behind the wall, with only the cover or trim visible.
- Is this ADA, WaterSense, or ASSE 1037 listed?
- Yes -- Sloan lists it as WaterSense and ASSE-1037.
Specifications
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Type: Flushometer
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Inlet Size: 1"
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Outlet Size: 1-1/2"
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Body Material: Semi-Red Brass
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Diaphragm Material: High-Chloramine-Resistant PERMEX Diaphragm
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Operation: Manual
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MPN: ROYAL 9603-1.28-RB
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Certifications: Buy American Act, IAPMO, WaterSense, ASSE-1037
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Fixture Served: Water Closet
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Body Style: Concealed
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Spud Connection: Rear Spud
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Rough-In (in): 16"
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Volume per Flush (gal): 1.28
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Dual Flush: No
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Finish: Unfinished (Rough Brass)
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Vandal Resistant: Yes
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Min Operating Pressure (PSI): 15
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Max Operating Pressure (PSI): 80
