Sloan CX 158-1.28 Concealed Manual Flushometer, 1.28 gpf, Rear Spud, Graphite

The Sloan CX 158-1.28-GR is a manual piston-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. This model is certified lead-free for potable-water installations.

Sloan CX 158 concealed manual flushometer with front access wall plate, ADA compliant push button, and vandal resistant design. No rear chase needed.

Options on this configuration: WM. Sloan model number: CX 158-1.28-GR. Sloan's own price-list description: CX 158-1.28 PVDGR WM.

Features

• 1.28 gpf, Filtered, Graphite Finish, Fixture Connection Rear Spud, Single Flush, Integrated Control Stop, 3.25"-4.25" L Dimension, Adjustable Flush Connection Outlet Tube, ADA Compliant Push Button, Short V500A & Adjustable Flush Connection Vacuum Breaker, Front Accessible Wall Box
• Fixed volume piston with filtered O-ring bypass
• Front access wall plate requires no rear access plumbing chase
• ADA compliant push button
• Vandal resistant wall plate
• Adjustable flush connection
• 8 1⁄2”(W) x 9 1⁄4”(H) Wall Box Panel Dimension

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. It ships with a front accessible wall box.

Is this ADA, WaterSense, or ASSE 1037 listed?

Yes -- Sloan lists it as ADA.

What control stop ships with this valve?

Integrated, per Sloan's own spec for this model.

Specifications

• Type: Flushometer
• Inlet Size: 1"
• Outlet Size: 1-1/2"
• Body Material: Semi-Red Brass
• Operation: Manual
• Control Stop: Integrated
• MPN: CX 158-1.28-GR
• Certifications: ADA, Buy American Act, BABA, IAPMO, NSF-372
• Lead-Free: Yes
• Fixture Served: Water Closet
• Body Style: Concealed
• Spud Connection: Rear Spud
• Rough-In (in): 12.625"
• L Dimension (in): 3-1/4"-4-1/4"
• Volume per Flush (gal): 1.28
• Dual Flush: No
• Finish: Graphite
• Vandal Resistant: Yes
• Backflow Device: Vacuum Breaker
• Min Operating Pressure (PSI): 20
• Max Operating Pressure (PSI): 80
• Wall Box Type: Front Accessible