Sloan Royal 603 ES-1.6 Concealed Solenoid Flushometer, 1.6 gpf, TMO, with C2A ESM (Solenoid) TMO (True Mechanical Override)

The Sloan Royal 603-1.6 is a solenoid-operated diaphragm-type flush valve for a water closet. It delivers 1.6 gallons per flush, with a concealed body. It features a permex synthetic rubber diaphragm seat.

Options on this configuration: True Mechanical Override (TMO); W/C2A. Sloan model number: Royal 603-1.6. Sloan's own price-list description: ROYAL 603-1.6 ESM TMO W/C2A.

Features

• 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, 1.6 gallons per flush.

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 ASSE-1037.

Specifications

• Type: Flushometer
• Diaphragm Material: PERMEX Synthetic Rubber Diaphragm
• Operation: Solenoid
• MPN: Royal 603-1.6
• Certifications: ASSE-1037
• Fixture Served: Water Closet
• Body Style: Concealed
• Volume per Flush (gal): 1.6
• Power Source: Hardwired AC