Model # K-4436-96

Internet #203100110

Store SO SKU #1000948304

KOHLER Wellworth Classic 1.28 GPF Single Flush Toilet Tank Only with Class Five Flushing Technology in Biscuit
0650531858429

KOHLER

Wellworth Classic 1.28 GPF Single Flush Toilet Tank Only with Class Five Flushing Technology in Biscuit

  • Toilet tank only - Toilet bowl sold separately
  • Wellworth toilet bowl (model K-4199) sold separately
  • Supply line not included
$9200 /each

Choose Your Options

Biscuit
  • Almond
  • Biscuit
  • Black Black
  • Ice Grey
  • Sandbar
  • White
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Frequently Bought Together

Product Overview

  • Toilet tank only - Toilet bowl sold separately
  • Wellworth toilet bowl (model K-4199) sold separately
  • Supply line not included
The streamlined design of the Wellworth toilet tank has been a KOHLER staple since 1936. Now equipped with high-efficiency components, this biscuit-colored tank releases 1.28 Gal. of water per flush, meeting the EPA’s standards for superior water conservation. It represents a 20% decrease in water usage compared to ultra-low-flow toilets (1.6 GPF) and a tremendous boost in efficiency compared to toilets commonly installed in the 1980s and early 1990s (3.5 GPF). With gravity-assisted syphoning and a canister flush valve, you’ll find the thrust of this tank is comparable to that of yesteryear’s inefficient toilets.
  • Outfitted with left-side trip lever
  • Supply line not included
  • Releases 1.28 Gal. of water per flush
  • Wellworth toilet bowl (model K-4199) sold separately
  • Conforms to EPA WaterSense standards, which translates to 20% less water usage than ultra-low-flow 1.6 GPF toilets
  • Gravity-assisted siphoning action delivers extra flushing oomph
  • Class Five flushing technology furnishes leak- and plug-free throughput
  • According to the EPA, a high-efficiency toilet like the Wellworth can reduce a family’s water usage by 20-60%, resulting in lower utility bills
  • Canister flush valve maximizes flush performance and inhibits deterioration and warping
  • Matches up with biscuit toilet bowls in the KOHLER Wellworth lineup (not included)
  • May qualify for rebates from your municipality or utility provider
  • Also available in almond, white and black black

Product Overview

  • Toilet tank only - Toilet bowl sold separately
  • Wellworth toilet bowl (model K-4199) sold separately
  • Supply line not included
Model #: K-4436-96
Internet #: 203100110

The streamlined design of the Wellworth toilet tank has been a KOHLER staple since 1936. Now equipped with high-efficiency components, this biscuit-colored tank releases 1.28 Gal. of water per flush, meeting the EPA’s standards for superior water conservation. It represents a 20% decrease in water usage compared to ultra-low-flow toilets (1.6 GPF) and a tremendous boost in efficiency compared to toilets commonly installed in the 1980s and early 1990s (3.5 GPF). With gravity-assisted syphoning and a canister flush valve, you’ll find the thrust of this tank is comparable to that of yesteryear’s inefficient toilets.

  • Outfitted with left-side trip lever
  • Supply line not included
  • Releases 1.28 Gal. of water per flush
  • Wellworth toilet bowl (model K-4199) sold separately
  • Conforms to EPA WaterSense standards, which translates to 20% less water usage than ultra-low-flow 1.6 GPF toilets
  • Gravity-assisted siphoning action delivers extra flushing oomph
  • Class Five flushing technology furnishes leak- and plug-free throughput
  • According to the EPA, a high-efficiency toilet like the Wellworth can reduce a family’s water usage by 20-60%, resulting in lower utility bills
  • Canister flush valve maximizes flush performance and inhibits deterioration and warping
  • Matches up with biscuit toilet bowls in the KOHLER Wellworth lineup (not included)
  • May qualify for rebates from your municipality or utility provider
  • Also available in almond, white and black black

Info & Guides

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Specifications

Dimensions

Flush Valve Size (in.)
2.125
Product Depth (in.)
8
Product Height (in.)
13.75
Product Width (in.)
19.625

Details

Collection Name
Wellworth
Color Family
Beige
Color/Finish
Biscuit
Commercial / Residential
Residential
Features
No Additional Features
Flushing Mechanism
Gravity Flush
Flushing Technology
Gravity Fed
Gallons Per Flush
1.280
Included
Handle
Material
Vitreous China
Product Weight (lb.)
35lb
Returnable
90-Day
Trip Lever Location
Left Side

Warranty / Certifications

Certifications and Listings
ADA Compliant
Manufacturer Warranty
One Year Limited Warranty

Specifications

Dimensions

Flush Valve Size (in.)
2.125
Product Depth (in.)
8
Product Height (in.)
13.75
Product Width (in.)
19.625

Details

Collection Name
Wellworth
Color Family
Beige
Color/Finish
Biscuit
Commercial / Residential
Residential
Features
No Additional Features
Flushing Mechanism
Gravity Flush
Flushing Technology
Gravity Fed
Gallons Per Flush
1.280
Included
Handle
Material
Vitreous China
Product Weight (lb.)
35lb
Returnable
90-Day
Trip Lever Location
Left Side

Warranty / Certifications

Certifications and Listings
ADA Compliant
Manufacturer Warranty
One Year Limited Warranty

Questions & Answers

Does this tank come withe the internal valves and handles

Asked by: Doug
yes, it comes pre-assembled and ready to install
Answered by: KATB
Date published: 2017-02-22

does this toilet tank fit most toilets?

My toilet is fine but the tank is broken.
Asked by: klgv
I ordered it on line form Home Depot I originally tried to order it from Kohler but they just sent back to where I purchased it. I would say it does not fit ANY toilet. Its shape is unique (smaller than normal)
Answered by: KATB
Date published: 2017-02-22

Can you lower the water level in the bowl without disturbing the flow efficiency

Asked by: Al
yes
Answered by: Eliane
Date published: 2017-05-23

can this tank replace the tank below

I have toilet tank with id on battom of the lid: Kohler Co upc t80 1.6 gpf 22175 4620 kb5
Asked by: babyo
Yes it will install on the 1.6 gallon base no problem flushing on the other hand may be a bit sticky if the older model did not flush well to begin with.
Answered by: oldfart
Date published: 2016-12-13
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Customer Reviews

Wellworth Classic 1.28 GPF Single Flush Toilet Tank Only with Class Five Flushing Technology in Biscuit is rated 4.0 out of 5 by 29.
Rated 2 out of 5 by from After carefully installing this Kohler tank, the gasket between... After carefully installing this Kohler tank, the gasket between the tank and bowl failed within a couple of weeks so, I've had to purchase a new gasket kit and re-install. I've run out of patience with this brand and now looking forward to replacing the tank and bowl with a different brand.
Date published: 2017-06-28
Rated 5 out of 5 by from This tank was a replacement for an old tank that... This tank was a replacement for an old tank that had been discontinued.Kohler told me that I would have to buy a new toilet bowl & tank that they did not have a replacement for the old tank that was compatible with the old toilet bowl.Well I proved them wrong.New tank works just fine w/old bowl.
Date published: 2017-10-28
Rated 5 out of 5 by from I just bought it for few weeks, it looks good and beautiful, a new improved item, saving water, a... I just bought it for few weeks, it looks good and beautiful, a new improved item, saving water, and meet my expectations.
Date published: 2017-05-23
Rated 5 out of 5 by from The tank was easy to install and works great ... The tank was easy to install and works great
Date published: 2017-10-03
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-07-19
Rated 5 out of 5 by from Everything worked perfectly... Everything worked perfectly
Date published: 2017-09-05
Rated 5 out of 5 by from Replacement tank. Couldn't stop a leak in my old Kohler tank (K-4620) replaced old tank w/ this K-4636-0 and it fit perfectly. Make sure your Kohler has a 3 bolt pattern at bottom of tank. Easy installation.
Date published: 2013-09-13
Rated 2 out of 5 by from It was as expected, on time and a quality product. Class Five flushing on the other hand is based... It was as expected, on time and a quality product. Class Five flushing on the other hand is based on a perfect plumbing installation. On an older home that has settled, plumbing included, as in my case needs a bit more water to complete the flush. This causes me to hold the lever down until it completes the entire flush. the previous model tank worked when adjusted for maximum water level. I'm probably using more water now than before due to this "New Technology" that goes backwards. John Crapper is rolling over in his grave..........
Date published: 2016-12-13
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