KOHLER K-3978 Two Piece Elongated 1.6 GPF Toilet User Manual

June 3, 2024
Kohler

KOHLER K-3978 Two Piece Elongated 1.6 GPF Toilet

Features

  • Two-piece design.
  • Elongated bowl offers added room and comfort.
  • 1.6 gpf (6.0 lpf)
  • Left-hand Polished Chrome trip lever.
  • Combination consists of the K-4468 tank and the K-4198 bowl.
  • Coordinates with other products in the Wellworth collection.
  • S’agence aux autres produits de la collection Wellworth.

Technology

  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing.
  • KOHLERs canister flush valve harnesses the natural force of gravity and optimizes flushing performance.
  • Class Five® flushing technology offers virtually plug-free performance and rinsing power for a clean bowl.

Installation

  • Standard 12″ (305 mm) rough-in.
  • Three-bolt quick-connect installation.
  • Seat and supply line sold separately.

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-9379 Trip Lever
  • 1023457 Wax Ring/Hardware Kit
  • 1265114 Connector Hose
  • K-23726 Drain treatment

Included Components

Product consists of:

  • 4198
  • 4468

Additional Components:

  • Bolt cap accessory pack
  • Tank accessory pack Tank cover
  • Trip lever

Codes/Standards

ASME A112.19.2/CSA B45.1
DOE – Energy Policy Act 1992
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™

KOHLER-K-3978-Two-Piece-Elongated-1.6-GPF-Toilet-1

Technical Information

All product dimensions are nominal.

  • Toilet type: Two-piece, 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)
  • 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.
For back-to-back toilet installations: Use only a 45° double wye fitting.

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.
5-15-2022 02:26 – US/CA

References

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>

Related Manuals