Is this toilet good for older adults?

Yes. The Comfort Height bowl is chair height, which most adults find easier to sit down on and stand up from. It is also ADA compliant.

How does it compare with older Highline models?

It uses the same proven Highline shape but adds Revolution 360 swirl flushing and weighs less than earlier versions. The AquaPiston canister replaces the older flapper design.

Does it come with a seat?

The set is the bowl and tank only. You choose a separate elongated seat, and a slow-close model is worth considering.

What is the rough-in and how does it mount?

It is a floor-mount toilet. Check your rough-in measurement before ordering, since the bowl must line up with your existing drain.

Will the right-hand lever fit my bathroom?

The trip lever is on the right side of the tank as you face the toilet. If your plumbing or wall is tight on that side, plan around it.

How much water does it use?

It flushes at 1.28 gallons per flush and is WaterSense certified, so it meets the EPA's water-efficiency standard.

KOHLER K-43999-RA Highline Comfort Height Two-Piece Elongated 1.28 GPF Toilet, Right-Hand Trip Lever

Q: Where is the KOHLER K-43999-RA Highline Comfort Height Two-Piece Elongated 1.28 GPF Toilet, Right-Hand Trip Lever cheapest?

At Easy Plumbing, for $363.56, as of our latest check.

Q: Where can I buy the KOHLER K-43999-RA Highline Comfort Height Two-Piece Elongated 1.28 GPF Toilet, Right-Hand Trip Lever?

6 stores we checked sell it, including General Plumbing Supply, ShopGPS, KOHLER Stores by General Plumbing Supply, Easy Plumbing, Showroom Source.

Best price now

$363.56at Easy PlumbingChecked Nov 12

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit Easy Plumbing

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What reviewers say

Owners of the Highline line generally report strong, reliable flushing and easy installation. The chair-height bowl draws consistent praise from older and taller users. Some note the two-piece build and plastic canister parts feel less substantial than one-piece toilets.

What people mention

Flush powerPraisedOwners say the swirl flush clears the bowl well and rarely needs a second flush.
Seat heightPraisedChair-height seating is repeatedly called easier on knees and backs.
Build qualityMixedSome find the two-piece construction and internal canister parts less solid than one-piece rivals.
InstallationPraisedBuyers describe the setup as manageable for a confident DIYer.
CleaningMixedThe bowl stays cleaner, but the seam between tank and bowl needs extra attention.

About the KOHLER K-43999-RA Highline Comfort Height Two-Piece Elongated 1.28 GPF Toilet, Right-Hand Trip Lever

The Kohler Highline Comfort Height is a two-piece, floor-mount toilet with an elongated bowl and a matching 1.28 gpf tank. It comes as a coordinated set and is made of vitreous china. The bowl has a 2-inch fully glazed trapway, and the toilet weighs less than previous Highline models.

Comfort Height gives chair-height seating that makes sitting down and standing up easier for most adults. Revolution 360 flushing technology creates a forceful swirling motion that keeps the bowl clean longer. The elongated bowl adds room and comfort.

The tank uses an AquaPiston canister that improves the flow out of the tank and increases flush power and effectiveness. The canister needs less force to actuate than a 3-inch (76 mm) flapper. It has 90% less exposed seal material, which resists wear, tear, shrinkage and swelling. The trip lever is Polished Chrome and on the right-hand side.

Model

K-43999-RA

In the set

Elongated toilet bowl (K-44199-0); toilet tank, 1.28 gpf (K-44467-RA-0)

Bowl shape

Elongated

Seat height

Comfort Height (chair height)

Flush volume

1.28 gpf (4.8 lpf)

Flush technology

Revolution 360 swirl flushing; AquaPiston canister