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Rear-Chase Mount, Siphon Jet Commercial Stainless Steel Toilet

Model 2141-RM Series
CSA B45.4
ADA Compliant
ASME A112.19.3
WaterSense - Meets EPA Criteria certified by IAPMO R&T 1.28 gpf
Installation Instructions
2 available
Submittal
2 available
Model 2141-RM Series

Rear-Chase Mount, Siphon Jet Commercial Stainless Steel Toilet

The 2141 Rear Mount Toilet features integral 1/2" UNC anchor tapping and mounting hardware. Unit requires an accessible pipe chase for installation. Wall Waste Outlet connection for Rear Mount (-RM) unit is a 2-3/8" OD stainless steel plain end. Floor Waste Outlet connection is a 7-1/2" Recessed Gasket Flange. The servicing access is typically from the rear (chase).

This siphon jet toilet works by directing a concentrated stream of water through a specialized jet to prime the trapway and create a powerful vacuum that pulls waste out with high velocity, followed by a refill cycle that restores the protective water seal.

The toilet is configured for a commercial 1" (25 mm) water supply line operating at 25 PSI (1.72 bar). Top Supply configured toilets feature a typically exposed flush valve. A 1-1/2" NPTE flushing inlet connection spud is provided at the top of the toilet housing. Wall Supply configured toilets typically feature a valve concealed in the wall. A 1-1/2" NPTE flushing inlet connection spud is provided at the rear of the toilet.

Off-Floor toilet (2141-1-FM) shall be mounted on the wall. Wall-waste toilets (2141-1-FM and 2141-2-FM) feature a wall-waste rough-in of 5-1/2" (140 mm) above the finished floor. The On-Floor toilet (2141-3-FM) shall be mounted to a finished wall with a floor waste of 4-1/4" (108 mm) from the finished wall.

  • Rear-Chase Mount Commercial Toilet
  • Requiring a commercial water supply line to operate. Water flow pressure 25 psi (1.72 bars); Water supply line 1" (25 mm).
    • TOP SUPPLY Configuration 
      Typically, an exposed valve mounted on top of the toilet housing  
    • WALL SUPPLY Configuration
      Typically, a concealed in-wall valve
    • Specify Flush Rates per Flush 
      • HET (high efficiency toilet) 1.28 gallon (4.84 liter) Watersense® certified  
      • 1.6 gallon (6.05 liter) Federal EPA standard
      • 3.5 gallon (13.25 liter) verify with local code authorities
  • 16-Gauge stainless steel construction
  • Mounting/Wall Waste Configurations:
    • -1 | Off-Floor, Wall Waste
    • -2 | On-Floor, Wall Waste
    • -3 | On-Floor, Floor Waste
  • Elongated Toilet Bowl
    Punched for an elongated toilet seat (not included) with 5-1/2" (140 mm) mounting centers
  • ADA-compliant toilets are available
  • ASME A112.19.3-2008 and CSA B45.4-2008 compliant

The toilet is designed to meet the needs of heavy-duty use, water conservation, and ADA compliance (when mounted properly).  Special-height toilets are available for the 2141-2 and 2141-3 models, meeting the 18" (457 mm) seat height. 2141-1 toilets can meet the ADA 18" height if installed properly.

WaterSense® advancements have allowed toilets to use 1.28 gallons (4.85 liters) per flush or less while still providing equal or superior performance. The WaterSense label is used on toilets that are independently certified to meet rigorous criteria for both performance and efficiency. Only water-saving toilets that complete the certification process can earn the WaterSense label. Must use optional HET valves to meet WaterSense label requirements.

Please check with local ADA requirements. ADA compliance is subject to proper installation (including devices such as grab bars) and the interpretations of the local code authority.

Downloads

Resource Type
Title
Description
File Size
Action
PDF icon
Installation Instructions
PDF icon
Install Guide 2141-1-RM, 2141-2-RM Toilet (pdf)
Acorn Meridian Rear/Chase Mount, Wall Waste, Siphon Jet Commercial Stainless Steel Toilet [2141-T-1-RM | Top Supply, Off-Floor; 2141-W-1-RM | Wall Supply, Off-Floor; 2141-T-2-RM | Top Supply, On-Floor; 2141-W-2-RM | Wall Supply, On-Floor]295 KB
PDF icon
Submittals
PDF icon
Submittal 2141-RM Toilet (pdf)
Acorn Meridian Rear/Chase Mount Siphon Jet Commercial Stainless Steel Toilet [2141-T-1-RM | Top Supply, Off-Floor Wall Waste; 2141-W-1-RM | Wall Supply, Off-Floor Wall Waste; 2141-T-2-RM | Top Supply, On-Floor Wall Waste; 2141-W-2-RM | Wall Supply, On-Floor Wall Waste; 2141-T-3-RM | Top Supply, On-Floor Floor Waste; 2141-W-3-RM | Wall Supply, On-Floor Floor Waste]131 KB
PDF icon
Submittals
PDF icon
Spec Sheet SQ-0-2358Y WC Support (pdf)
Fixture Support Detail for Siphon Jet Water Closet for Acorn Engineering Model 2141-FM, Neo-Metro Model 8955142 KB
PDF icon
Installation Instructions
PDF icon
Install Guide 2141-3-RM Toilet (pdf)
Acorn Meridian Rear/Chase Mount, On-Floor Floor Waste, Siphon Jet Commercial Stainless Steel Toilet [2141-T-3-RM | Top Supply; 2141-W-3-RM | Wall Supply]293 KB
PDF icon
Brochures/Flyers
PDF icon
Acorn Enviro-Glaze Powder Coating Colors Flyer (pdf)
Enviro-Glaze Powdercoating Color Chart - Update Aug 2026291 KB
RFA icon
BIM/CAD/Revit
RFA icon
2141-3 Front and Rear Mount Toilet (rfa)
2141 Siphon Jet Toilet, On-Floor, Floor Waste [2141-T-3-FM | Top Supply, Front Mount; 2141-T-3-FM-ADA | Top Supply, Front Mount, ADA Seat Height; 2141-W-3-RM | Wall Supply, Rear Mount; 2141-W-3-RM-ADA | Wall Supply, Rear Mount, ADA Seat Height]584 KB
ZIP icon
BIM/CAD/Revit
ZIP icon
2141-RM Toilet (dwg/zip)
Rear (Chase) Mount 2141 Toilet [2141-W-3-RM | Wall Supply, Floor Mount, Floor Waste; 2141-W-3-RM-ADA | Wall Supply, Floor Mount, Floor Waste, ADA Seat Height]123 KB

Specifications

AccessibilityADA Compliant
Additional Accessibility NotesMust be specified: 8955-ADA-T-2, 8955-ADA-T-3 to be ADA compliant
MaterialStainless Steel
Steel FinishSatin Finish Stainless Steel [STANDARD - plain model number], -HP | Mira High Polish Stainless Steel
MountWall Mounted, Floor Mounted
FlushingClassified as High Efficiency Toilet/Urinal, Commercial 1" Supply @ 35 psi Required, Top Supply (typical exposed flush flush valve)
Waste Location4.25" Floor Toilet Rough-In, Wall Waste
Toilet Bowl ShapeElongated
Environmental/HealthWater Saving
CertificationsASME A112.19.3, WaterSense - Meets EPA Criteria certified by IAPMO R&T 1.28 gpf, CSA B125.1
Options2954-720-000 | In-Wall Toilet Carrier

Options

Accessories

Image
Model
Description
Downloads
Accessory: Wall Sleeve
SW
Accessory: Wall Sleeve

Miscellaneous

Image
Model
Description
Downloads
Option: Wall Supply for Toilet
W (Toilet)
Option: Wall Supply for Toilet
Option: Top Supply for Toilet
T (Toilet)
Option: Top Supply for Toilet
Option: Off-Floor, Wall Outlet
-1
Option: Off-Floor, Wall Outlet
Option: On-Floor, Wall Outlet Toilet
2 (Toilet)
Option: On-Floor, Wall Outlet Toilet
Option: On-Floor, Wall Outlet Toilet (increased height to meet ADA requirements)
2-ADA (Toilet)
Option: On-Floor, Wall Outlet Toilet (increased height to meet ADA requirements)
Option: On-Floor, Floor Outlet Toilet (increased height to meet ADA requirements)
3-ADA (Toilet)
Option: On-Floor, Floor Outlet Toilet (increased height to meet ADA requirements)
Option: On-Floor, Floor Outlet Toilet
3 (Toilet)
Option: On-Floor, Floor Outlet Toilet
Option: High Efficiency Toilet Flush - 1.28 gallons (4.85 liters) per Flush
HET
Option: High Efficiency Toilet Flush - 1.28 gallons (4.85 liters) per Flush
Option: Ultra Low Toilet Flush - 1.6 gallon (6 liter) per Flush
ULF (Toilet)
Option: Ultra Low Toilet Flush - 1.6 gallon (6 liter) per Flush
Option: Mechanical Flush Valve
FV
Option: Mechanical Flush Valve
Option: Flush Valve by Others
FVBO
Option: Flush Valve by Others
Option: Hydraulic Flush Valve
FVH
Option: Hydraulic Flush Valve
Option: Flush Valve with Lever Activation
FVL
Option: Flush Valve with Lever Activation
Push Button Solenoid Flush Valve Application Time-Trol®
MVCFV
Push Button Solenoid Flush Valve Application Time-Trol®
Option: Hinged Seat (Less Cover)
HS-OFLC
Option: Hinged Seat (Less Cover)
Option: Hinged Seat Open Front with Cover
HS-OFWC
Option: Hinged Seat Open Front with Cover
Option: Less Punching for Seat
LPFS
Option: Less Punching for Seat
Option: Cleanout with O-Ring, Connecting to 4" No-Hub
CO1
Option: Cleanout with O-Ring, Connecting to 4" No-Hub
Option: Cleanout with O-Ring, Connecting to 3" No-Hub
CO1-3
Option: Cleanout with O-Ring, Connecting to 3" No-Hub
Option: Flush Valve Thru Wall Connection
FVT
Option: Flush Valve Thru Wall Connection
Option: Gasketed Waste
GW
Option: Gasketed Waste
Option: Enviro-Glaze® Powder Coating
EG
Option: Enviro-Glaze® Powder Coating
Option: High Polish Finish on Stainless Steel Fixture
HP
Option: High Polish Finish on Stainless Steel Fixture
Option: Metal Template
MT
Option: Metal Template
Option: Transformer for AC Power Valve
TF
Option: Transformer for AC Power Valve

Models

2141-W-1-RM

Wall Supply
Off-Floor, Wall Waste
Rear Mount

ADA when mounted properly

[ install ]

2141-W-2-RM

Wall Supply
On-Floor, Wall Waste
Rear Mount

ADA Height:
2141-W-2-RM-ADA 

[ install ]

2141-W-3-RM

Wall Supply
On-Floor, Floor Waste
Rear Mount

ADA Height
2141-W-3-RM-ADA

[ install ]

2141-T-1-RM

Top Supply
Off-Floor, Wall Waste
Rear Mount

ADA when mounted properly

[ install ]

2141-T-2-RM

Top Supply
On-Floor, Wall Waste
Rear Mount

ADA Height:
2141-W-2-FM-ADA 

[ install ]

2141-T-3-RM

Top Supply
On-Floor, Floor Waste
Rear Mount

ADA Height:
2141-W-3-FM-ADA

[ install ]