Page 1
Features
•
Two-piece design.
•
Elongated bowl offers added room and comfort.
•
Left-hand nested trip lever offers a choice of 1.1 or 1.6
gallons per flush (gpf).
•
2-1/8" (54 mm) fully glazed trapway.
•
Coordinates with other products in the Wellworth collection.
•
Combination consists of the K-4198 bowl and the K-4458
tank.
Technology
•
Dual-flush technology allows you to choose between a full or
partial flush.
Installation
•
Seat sold separately.
•
Standard 12" (305 mm) rough-in.
•
Three-bolt quick-connect installation.
Water Conservation & Rebates
•
Eligible for consumer rebates in some municipalities.
Recommended Products/Accessories
K-4636 Cachet® Quiet-Close™ Elongated Toilet Seat
K-5588 Purefresh® Elongated Toilet Seat
K-4108 C³®-230 Elongated bidet toilet seat
K-5420 Low-Profile Bolt Caps
K-9237 Dual-flush Trip Lever
1023457
1265114
K-23726 Drain treatment
Included Components
Product consists of:
4198
4458
Additional Components:
Bolt cap accessory pack
Bowl
Tank
Tank cover
Trip lever
Codes/Standards
ASME A112.19.2/CSA B45.1
EPA WaterSense
®
KOHLER® Toilets and Seats Limited
Warranty
See website for detailed warranty information.
Available Colors/Finishes
Color tiles intended for reference only.
Color Code Description
0 White
96 Biscuit
7 Black Black™
Wellworth
®
two-piece elongated dual-flush toilet
K-3988
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.
7-19-2022 20:40 - US/CA
Page 2
Wellworth
30" (762 mm)
18" (457 mm)
L of Outlet
C
Front of Bowl
3/8" NPT Supply
12" (305 mm)
4-1/8" (105 mm)
3/4"
(19 mm)
2-3/4"
(70 mm)
14-1/2"
(368 mm)
29-1/4"
(743 mm)
5"
(127 mm)
10-1/8"
(257 mm)
10-1/4"
(260 mm)
16-1/4"
(413 mm)
15"
(381 mm)
8-1/2"
(216 mm)
Technical Information
All product dimensions are nominal.
Toilet type: Floor-mount
Waste Outlet: Floor
Bowl shape: Elongated
Flush type: Class Five
®
Trap passageway: 2-1/8" (54 mm)
Water Consumption
Full: 1.6 gpf (6 lpf)
Reduced: 1.1 gpf (4.3 lpf)
Water surface size: 11-1/4" x 8-1/4" (286 mm x 210 mm)
Rim to water
surface:
5-1/4" (133 mm)
Rough-in: 12" (305 mm)
Seat-mounting
holes:
5-1/2" (140 mm)
Notes
Install this product according to the installation
instructions.
®
two-piece elongated dual-flush toilet
K-3988
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.
7-19-2022 20:40 - US/CA
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