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Features
•
Two-piece design.
•
Elongated bowl offers added room and comfort.
•
Comfort Height® feature offers chair-height seating that
makes sitting down and standing up easier for most adults.
•
1.28 gpf (4.8 lpf).
•
2-1/8" (54 mm) fully glazed trapway.
•
Right-hand Polished Chrome trip lever.
•
Combination consists of the K-4397 bowl and the K-4438-RA
tank.
•
Coordinates with other products in the Devonshire collection.
•
Polished Chrome, right-hand trip lever, less seat and supply.
Technology
•
Single-flush gravity uses the force of gravity and a precisionengineered tank, bowl, and trapway to create a strong siphon
during flushing.
•
AquaPiston® canister allows water to flow into the bowl from
all sides (360°), increasing the power and effectiveness of the
flush.
•
Flush valve's 3:2 ratio harnesses the natural force of gravity
and optimizes flush performance.
•
Durable canister design has 90% less exposed seal material
than a 3" flapper for leak-free performance.
•
Light-touch canister flush requires a lower actuation force
than a flapper.
•
AquaPiston® canister flush valve optimizes flush performance
and resists warping and deterioration.
Installation
•
Standard 12" (305 mm) rough-in.
•
Three-bolt quick-connect installation.
•
Seat and supply line sold separately.
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-9167-R Trip Lever
1023457 Wax Ring/Hardware Kit
1265114 Connector Hose
K-23726 Drain treatment
Included Components
Product consists of:
4397
4438-RA
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
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
Devonshire® Comfort Height
®
Two-piece elongated 1.28 gpf chair height toilet
K-3837-RA
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.
11-18-2021 05:48 - US/CA
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Devonshire® Comfort Height
Finished Floor
Finished Wall
5" (127 mm)
C
L of Outlet
For Back-to-Back Toilet Installations
Use a 45° double
wye fitting.
Do not use a
double sanitary tee.
Front of Bowl
29-1/4" (743 mm)
12" (305 mm)
3/8" NPT Supply
6" (152 mm)
9-3/8"
(238 mm)
10" (254 mm)
17-1/4"
(438 mm)
17-1/4"
(438 mm)
30-3/4"
(781 mm)
16-1/2"
(419 mm)
1-1/4" (32 mm)
3" (76 mm)
7-13/16" (198 mm)
Technical Information
All product dimensions are nominal.
Toilet type: Two-piece, Floor-mount
Waste Outlet: Floor
Bowl shape: Elongated
Flush type: AquaPiston
®
Trap passageway: 2-1/8" (54 mm)
Water Consumption
Full: 1.28 gpf (4.8 lpf)
Water surface size: 11-1/2" x 8-3/4" (292 mm x 222 mm)
Rim to water
surface:
5-1/2" (140 mm)
Rough-in: 12" (305 mm)
Seat-mounting
holes:
5-1/2" (140 mm)
Notes
Install this product according to the installation
instructions.
For back-to-back toilet installations: Use only a
45° double wye fitting.
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.
®
Two-piece elongated 1.28 gpf chair height toilet
K-3837-RA
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.
11-18-2021 05:48 - US/CA
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