For a cast iron farmhouse sink, pick the Kohler Whitehaven K-6489. For a simple large stainless single bowl, pick the Prologue K-31466-1. For a workstation sink with its accessories included, pick the Task K-80084-1PC. To replace an old 33 × 22-inch double drop-in, pick the Verse K-5267-1. All four need at least a 36-inch base cabinet.
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This guide compares four Kohler kitchen sinks using Kohler’s own spec sheets.
Kohler kitchen sinks compared (Kohler spec sheets)
On a phone, swipe or scroll the table sideways to see every column.
| Sink | Material / mount | Size / bowl | Faucet holes |
|---|---|---|---|
| Whitehaven K-6489-0 | Enameled cast iron; undermount farmhouse (apron front) | 35-11/16 × 21-9/16 in.; one bowl 30-3/4 × 18-1/16 × 9 in. | None in the sink |
| Prologue K-31466-1-NA | 18-gauge stainless; top-mount or undermount | 33 × 22 in.; one bowl 30 × 16-1/8 × 9 in. | 1 |
| Task K-80084-1PC-NA | 18-gauge stainless workstation; top-mount or undermount | 33 × 22 in.; one bowl 30-1/4 × 14-15/16 × 9-3/16 in. | 1 |
| Verse K-5267-1-NA | 18-gauge stainless; top-mount only | 33 × 22 in.; two equal bowls 14-3/16 × 15-11/16 × 9 in. | 1 |
Kohler makes kitchen sinks in two main materials: enameled cast iron and stainless steel. The choice that matters most in your kitchen is the mount. An undermount sink hangs below a solid countertop such as stone or quartz. A top-mount (drop-in) sink sits on the counter with its rim showing, which also works with laminate. A farmhouse sink needs a special base cabinet with a lowered front.
Kohler Whitehaven K-6489-0: cast iron farmhouse sink
Choose the Whitehaven K-6489 for a cast iron farmhouse sink with a tall apron front. Kohler’s spec sheet (resources.kohler.com) lists enameled cast iron with an acid-resistant enamel finish, a single bowl 30-3/4 × 18-1/16 inches and 9 inches deep, a 35-11/16 × 21-9/16-inch outside size, a Self-Trimming apron that overlaps the cabinet face, a bowl that slopes toward an offset drain, and undermount installation with cutout templates included. It needs at least a 36-inch apron sink base cabinet.
Kohler adds one condition that is easy to miss: the distance from the top edge of the cabinet to the top of the cabinet door must be at least 9 inches. The drawing shows the 3-5/8-inch drain hole 6-3/4 inches from the right side and the back, so the drain sits toward the right rear corner. The sink drain and strainer are sold separately; Kohler names the K-8799 strainer.
On October 15, 2026, the standard new offer sold by Amazon.com showed limited stock with model 6489-0, white.
Check Kohler Whitehaven K-6489-0 farmhouse sink on Amazon →
Kohler Prologue K-31466-1-NA: simple stainless single bowl
Choose the Prologue K-31466-1 for a plain, large single-bowl stainless sink that can go above or below the counter. Kohler’s spec sheet (resources.kohler.com) lists premium 18-gauge stainless steel, rounded corners for easy cleaning, a 33 × 22-inch outside size, a single bowl 30 × 16-1/8 inches and 9 inches deep with no overflow, one 1-7/16-inch faucet hole, top-mount or undermount installation and an included template.
The drawing centers the 3-5/8-inch drain on the sink’s length and shows the faucet hole 2-3/8 inches in from the back edge. A sink rack, drain and strainer are listed as recommended accessories, not included parts.
On October 15, 2026, the standard new offer sold by eFaucets showed limited stock with model 31466-1-NA.
Check Kohler Prologue K-31466-1-NA stainless kitchen sink on Amazon →
Kohler Task K-80084-1PC-NA: workstation with accessories
Choose the Task K-80084-1PC if you want a workstation sink that comes with its accessories. Kohler’s spec sheet (resources.kohler.com) lists premium 18-gauge stainless steel, tightly angled corners for more bowl space, a 33 × 22-inch outside size, one faucet hole and top-mount or undermount installation. It includes a bamboo cutting board, a two-piece colander set, a silicone sink mat and a stainless drain and strainer. When the sink is top-mounted the accessories slide on its ledges; when it is undermounted the cutting board slides across the countertop.
The features list a 9-inch depth while the technical table lists a 9-3/16-inch bowl depth; plan on about 9 inches. The bowl is 30-1/4 inches long and 14-15/16 inches wide, the narrowest bowl of the four.
On October 15, 2026, the standard new offer sold by eFaucets showed limited stock with model K-80084-1PC-NA.
Check Kohler Task K-80084-1PC-NA workstation sink on Amazon →
For more ledge-style sinks from other makers, see our workstation kitchen sink guide.
Kohler Verse K-5267-1-NA: double bowl drop-in
Choose the Verse K-5267-1 to replace an old 33 × 22-inch double drop-in sink. Kohler’s spec sheet (resources.kohler.com) lists premium 18-gauge stainless steel, two equal bowls each 14-3/16 × 15-11/16 inches and 9 inches deep, one faucet hole, top-mount installation only and included installation hardware.
The drawing places each drain 8-7/8 inches in from its end of the sink and the faucet hole centered, 2-1/4 inches from the back edge. Because it is top-mount only, it is not the sink for a new stone counter where you want an undermount look.
On October 15, 2026, the standard new offer sold by Buildcom showed In Stock with model 5267-1-NA.
Check Kohler Verse K-5267-1-NA double bowl sink on Amazon →
Cast iron or stainless steel?
Kohler’s enameled cast iron sinks, like the Whitehaven, have an acid-resistant enamel finish and come in many colors; the Whitehaven sheet lists white plus ten other colors. Its stainless sinks are 18-gauge steel and list resistance to corrosion and tarnishing. Cast iron is much heavier than stainless, so an undermount cast iron sink needs solid support under the counter; follow Kohler’s installation instructions and have the countertop fabricator plan for it.
Both materials carry a Kohler lifetime limited warranty according to the spec sheets; read the warranty on Kohler’s website for what it covers.
Plan the drain, disposal and faucet
All four sinks have a 3-5/8-inch drain hole, the standard size for a basket strainer or a disposal flange; our basket strainer guide covers strainers. The drawings show the 1-1/2-inch drain outlet roughly 14-5/8 to 15 inches below the rim, which helps you check the trap height against the drain in the wall before you buy. On the Whitehaven, the right-rear drain leaves more room on the left side of the cabinet.
The three stainless sinks have one faucet hole. If your faucet needs a separate sprayer or soap dispenser, you will need a countertop hole for it. Our Kohler kitchen faucet guide covers Kohler kitchen faucets.
Undermount or top-mount?
The Prologue and Task can be installed either way; the Verse is top-mount only, and the Whitehaven is undermount only. Undermount sinks need a solid-surface countertop and a cutout made from the template that comes with the sink. Our undermount vs drop-in guide explains the trade-offs, and our kitchen sink guide compares sinks across brands.
Frequently asked questions
What size cabinet do Kohler kitchen sinks need?
All four sinks here list a 36-inch minimum base cabinet. The Whitehaven needs a 36-inch apron sink base.
Are Kohler stainless sinks 18 gauge?
The Prologue, Task and Verse all list premium 18-gauge stainless steel.
Does the Whitehaven come with a drain?
No. Kohler says the sink drain and strainer are sold separately.
Can a Kohler sink be undermounted?
The Whitehaven is undermount only; the Prologue and Task are top-mount or undermount; the Verse is top-mount only.
How deep are Kohler kitchen sinks?
About 9 inches for all four bowls here, per Kohler; the Task lists 9-3/16 inches in its technical table.
How we chose
This document-based guide makes no hands-on testing claim. We read and rendered Kohler’s spec sheets for the K-6489, K-31466-1, K-80084-1PC and K-5267-1. On October 15, 2026, we checked each linked standard new Amazon offer for model, seller, stock and an add-to-cart button. A Riverby cast iron sink was left out because the Amazon model did not match the Kohler spec sheet we could find. Read our selection method and about Plumbing Picks.
Primary sources
- Kohler K-6489 Whitehaven spec sheet (resources.kohler.com): cast iron, 36 in. apron base, 9 in. cabinet note, bowl, drain offset, undermount, drain sold separately.
- Kohler K-31466-1 Prologue spec sheet (resources.kohler.com): 18-gauge, 33×22, bowl 30×16-1/8×9, 1 hole, top/undermount.
- Kohler K-80084-1PC Task spec sheet (resources.kohler.com): 18-gauge workstation, included accessories, bowl 30-1/4×14-15/16×9-3/16, top/undermount.
- Kohler K-5267-1 Verse spec sheet (resources.kohler.com): 18-gauge, double equal bowls 14-3/16×15-11/16×9, top-mount only, hardware included.