Kohler Primary K-4321 Specifications Download Page 2

Technical Information

Fixture:
Configuration

Top spud,
elongated

Water per flush

1.6 gal (6 L)*

Spud size

1-1/2

Passageway

2-1/8

(54 mm)

Water area

12-3/8

(314 mm) x

10-1/8

(257 mm)

Water depth from rim

4-1/4

(108 mm)

Seat post hole centers

5-1/2

(140 mm)

Minimum static pressure required

35 psi (241.3 kPa)

Maximum static pressure

80 psi (551.6 kPa)

Minimum flowing pressure required

25 psi (172.4 kPa)

Required supply minimum

25 gpm (94.6 lpm)

* Designed to flush with 1.6 gal (6 L) of water when
installed with a 1.6 gpf (6 lpf) valve.

Included components:
Spud

18357

Seat

K-4686-A

Bolt cap accessory pack

1013092

Installation Notes

Install this product according to the installation guide.

Refer to manufacturer and local codes for flush valve
requirements.

Will comply with the American Disabilities Act

(ADA)

when

installed per the requirements of the Accessibility Guidelines,
Section 604 Water Closets, of the Act. The Model Plumbing
Codes require the installation of elongated open-front toilet
seats in public bathrooms.

Front of Bowl

1-1/2" Spud

1-1/4" 
(32 mm)

12-7/8" (327 mm)

17-5/16" 
(440 mm)

4-3/8" 
(111 mm)

9-1/2" (241 mm)

10-3/4"
(273 mm) 

10" (254 mm)

4-7/8" 
(124 mm)

2" (51 mm)

3-1/8" 
(79 mm)

26-7/8" (683 mm)

30" (762 mm)

14-7/16" (367 mm)

L of Outlet

C

Product Diagram

PRIMARY

TM

PRIMARY

TM

BOWL

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