KOHLER K-4323 Rear Spud Flushometer Bowl Owner’s Manual

: July 12, 2024
: Kohler

Table of Contents

K-4323 Rear Spud Flushometer Bowl
Specifications
Product Usage Instructions
Installation
Recommended Replacements
Material
Codes/Standards
FAQ

K-4323 Rear Spud Flushometer Bowl

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Specifications

Toilet type: Wall-mount
Waste Outlet: Wall
Flush type: Siphon jet
Spud size: 1-1/2, Inlet, Rear
Trap passageway: 2-1/8 (54 mm)
Water surface size: 10-1/2 x 9 (267 mm x 229 mm)
Rim to water surface: 5-1/4 (133 mm)
Seat-mounting holes: 5-1/2 (140 mm)
Fixture Supply Requirements:
- Min static pressure: 35 psi (241.3 kPa)
- Max static pressure: 80 psi (551.6 kPa)
- Min flowing pressure: 25 psi (172.4 kPa)
- Min flow rate: 25 gpm (94.6 lpm)

Product Usage Instructions

Installation

Install the product according to the provided installation
instructions.
Refer to the manufacturer’s instructions and local codes for
flushometer requirements.
Ensure the valve is properly braced during installation.
Verify that pressure and flow meet the specified
requirements.

Recommended Replacements

For back-to-back toilet installations, use a wye fitting or
double sanitary tee with specific measurements as follows:

Spud Size: 1/16 (2 mm) 1-1/2 Spud
Dimensions:
- Finished Wall: 26-1/2 (673 mm)
- Finished Floor: 5 (127 mm)
- CL Of Outlet: 1-5/8 (41 mm)

Material

The product is made of high-quality materials ensuring
durability and longevity.

Codes/Standards

The product is ADA, OBC, CSA B651 compliant when installed to
the specific requirements of these regulations. Plumbing codes may
require elongated toilets and seats in public bathrooms.
Accessibility standards may require controls to be located on the
open side of the toilet.

FAQ

Q: Where can I find detailed warranty information?

A: Please visit the manufacturer’s website for detailed warranty
information.

Q: What is the customer service contact number?

A: You can reach customer service at 1-800-4KOHLER
(1-800-456-4537).

Q: Are there any specific maintenance requirements for this

product?

A: Regular cleaning and inspection are recommended to ensure
optimal performance. Refer to the maintenance section in the user
manual for detailed instructions.

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Features
· Elongated bowl offers added room and comfort · Siphon jet · 1-1/2″ (38 mm) rear spud · 1.28 or 1.6 gpf (4.8 or 6.0 lpf) depending on flushometer
specified
Material
· Vitreous china
Installation
· Wall-mount · This product is not designed or intended for bariatric use
Recommended Replacements
· This product is replaced by 84323.

KingstonTM
Rear spud flushometer bowl K-4323

Codes/Standards
ASME A112.19.2/CSA B45.1 DOE – Energy Policy Act 1992 EPA WaterSense® California Energy Commission (CEC) ADA ICC/ANSI A117.1 CSA B651 OBC IAPMO Certification
KOHLER® One-Year Limited Warranty
See website for detailed warranty information.

1-800-4KOHLER (1-800-456-4537) Kohler Co. reserves the right to make revisions without notice to product specifications. For the most current Specification Sheet, go to www.kohler.com USA or www.kohler.ca Canada 6-7-2024 21:40 – US

KingstonTM
Rear spud flushometer bowl K-4323
For Back-to-Back Toilet Installations

Use a 45° double Do not use a

wye fitting.

double sanitary tee.

1/16″ (2 mm) 1-1/2″ Spud
11-1/2″ (292 mm)
5″ (127 mm)

Finished Wall 26-1/2″ (673 mm)

16-1/2″ (419 mm) 9″ (229 mm)

3-1/2″ (89 mm)

2-1/2″ (64 mm)

15″ (381 mm)

7-1/2″ (191 mm)

CL Of Outlet 1-5/8″ (41 mm)

Finished Floor

5″ (127 mm)

13-1/4″ (337 mm)

Technical Information
All product dimensions are nominal.

Toilet type:

Wall-mount

Waste Outlet:

Wall

Flush type:

Siphon jet

Spud size:

1-1/2″, Inlet, Rear

Trap passageway: 2-1/8″ (54 mm)

Water surface size: 10-1/2″ x 9″ (267 mm x 229 mm)

Rim to water

5-1/4″ (133 mm)

surface:

Seat-mounting

5-1/2″ (140 mm)

holes:

Fixture Supply Requirements
Min static pressure: 35 psi (241.3 kPa)

Max static pressure: 80 psi (551.6 kPa)

Min flowing pressure:

25 psi (172.4 kPa)

Min flow rate:

25 gpm (94.6 lpm)

Notes
Install this product according to the installation instructions.
Refer to manufacturer’s instructions and local codes for flushometer requirements.
For back-to-back toilet installations: Use only a 45° double wye fitting.
Ensure valve is braced properly.
Ensure pressure and flow are correct.
ADA, OBC, CSA B651 compliant when installed to the specific requirements of these regulations.
Plumbing codes may require elongated toilets and elongated, open-front seats in public bathrooms.
Accessibility standards may require controls to be located on the open side of the toilet.

1-800-4KOHLER (1-800-456-4537) Kohler Co. reserves the right to make revisions without notice to product specifications. For the most current Specification Sheet, go to www.kohler.com USA or www.kohler.ca Canada 6-7-2024 21:40 – US