Sloan Royal 603 ES-1.28 Concealed Solenoid Flushometer, 1.28 gpf, Rear Spud

The Sloan ROYAL 603 ES-ESM-1.28-RB-24V is a solenoid-operated 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 permex synthetic rubber diaphragm seat.

Options on this configuration: 24V Power (24V). Sloan model number: ROYAL 603 ES-ESM-1.28-RB-24V.

Features

• 1.28 gpf, Rough Brass Finish, Fixture Connection Rear Spud, Single Flush, Hardwired, Solenoid-Operated with Modular Plug, 24V
• 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.

How is it powered, and what happens in a power outage?

Hardwired -- no battery to replace, but an electrician must run power to it.

Is this ADA, WaterSense, or ASSE 1037 listed?

Yes -- Sloan lists it as WaterSense and ASSE-1037.

Specifications

• Type: Flushometer
• Inlet Size: 1"
• Outlet Size: 1-1/2"
• Body Material: Semi-Red Brass
• Diaphragm Material: PERMEX Synthetic Rubber Diaphragm
• Operation: Solenoid
• MPN: ROYAL 603 ES-ESM-1.28-RB-24V
• Certifications: Buy American Act, BABA, IAPMO, WaterSense, UL, ASSE-1037
• Fixture Served: Water Closet
• Body Style: Concealed
• Spud Connection: Rear Spud
• Rough-In (in): 16"
• Volume per Flush (gal): 1.28
• Dual Flush: No
• Finish: Unfinished (Rough Brass)
• Min Operating Pressure (PSI): 15
• Max Operating Pressure (PSI): 80
• Power Source: Hardwired AC
• Power Supply Detail: 24V