Internet #203100108

Model #K-4436-7

Store SO SKU #1000477336

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

  • Toilet tank only - Toilet bowl sold separately
  • Wellworth toilet bowl (model K-4199) sold separately
  • Supply line not included
  • See More Details

Frequently Bought Together

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Price:
$13905

Product Overview

This Wellworth Black Black high-efficiency toilet tank is a perfect match to bowls of the same color in this KOHLER ensemble, furnishing a uniform, modern look to your bathroom. This unit delivers 1.28 GPF, which is a huge improvement over 3.5 Gal. toilets that were commonly installed in American houses in the 1980s and early 1990s. With a canister flush valve and gravity-assisted syphoning, you’ll find that this tank has thrust comparable to that of yesteryear’s inefficient toilets.
  • Class Five flushing technology furnishes leak- and plug-free throughput
  • Conforms to EPA WaterSense standards, which translates to 20% less water usage than ultra-low-flow 1.6 GPF toilets
  • Outfitted with left-side trip lever
  • Supply line not included
  • Gravity-assisted siphoning action delivers extra flushing oomph
  • Canister flush valve maximizes flush performance and inhibits deterioration and warping
  • Matches up with black black toilet bowls in the KOHLER Wellworth lineup (not included)
  • 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
  • Releases 1.28 Gal. of water per flush
  • Wellworth toilet bowl (model K-4199) sold separately
  • May qualify for rebates from your municipality or utility provider
  • Also available in almond, white and biscuit colors
  • Click here to learn more about Eco Options and Water Conservation

Info & Guides

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Specifications

Dimensions

Flush Valve Size (in.)
3.0
Product Depth (in.)
8
Product Height (in.)
13.75
Product Width (in.)
19.625

Details

Collection Name
Wellworth
Color Family
Black
Color/Finish
Black Black
Commercial / Residential
Residential
Features
No Additional Features
Flushing Technology
Gravity Fed
Flushing Type
Single Flush
Gallons Per Flush
1.28
Included
Handle
Material
Vitreous China
Models used with
K-4197 bowl or K-5393 bowl
Product Weight (lb.)
35
Returnable
180-Day
Style
Art Deco,Bohemian,Classic,Glam,Industrial,Mediterranean,Mid-Century Modern,Minimalist,Mission,Modern,Southwestern,Transitional
Trip Lever Location
Left Side

Warranty / Certifications

Certifications and Listings
ADA Compliant
Manufacturer Warranty
One Year Limited Warranty

Questions & Answers

56Questions15Answers

Will this fit a toilet manufactured in 1979?

Asked by Mayor October 27, 2020
1
Answer

Hi, this is Laura with Kohler Co. I am happy to assist you with your question. No; it will not be compatible with a 1979 toilet. The flushing systems and amount of water used are very different. Thank you for choosing Kohler.

Will this tank replace a k4519?

Asked by Jim October 15, 2020
1
Answer

Hi Jim, this is Sarah with Kohler Customer Service. I'm glad to address your question. No, at this time, we do not have a direct replacement for the K-4519 toilet tank. The tank and bowl would need replacement if one were needed. Thank you for choosing Kohler.

Will this replace my toilet tank K 67-001-1 which was on top of a Gerber 21-752? Thank you.

Asked by Carmen August 20, 2020
1
Answer

Hi, this is Laura with Kohler Co. I am happy to assist you with your question. This Wellworth tank is not compatible with another manufacturer's toilet. It must be paired with the Wellworth bowls K-4197 or K-5393. Thank you for choosing Kohler.

WILL THIS TANK FIT MY TOILET BOWEL # 45927-0 IT IS A KOHLER ON THE BOX IT SHOWS # K-4144.

Asked by JAMES July 7, 2020
2
Answers

Yes

Hello, Does this tank fit to toilet with barcode# SB5M9LD? What parts are included in the shippin...

Asked by Sri June 20, 2020
1
Answer

Hi Sri, this is Sarah with Kohler Customer Service. I'm glad to answer your question. The serial number given indicates you have the K-4620 Wellworth toilet tank. This tank has been discontinued with no replacement. I'm sorry, this newer Wellworth Classic tank will not fit your existing toilet bowl. The tank and bowl would need replacement. Thank you for choosing Kohler.

I’m trying to replace my electronic toilet tank with a regular flush tank the number inside says it’s a Koehler K 5692

Asked by Ron November 10, 2019
2
Answers

It depends on the bolt configuration of the base / bowl of your toilet. Are there 3 bolts or 2? I used this tank to replace a Kohler "Highline" touchless toilet, which has attachment bolts on each side of the bowl, and one on the back of the bowl, so 3 bolts altogether. I originally bought the bowl for the Cimarron and it had a different bolt configuration; it had only 2 bolts so I had to return it. Kohler.com, shows that the K 5692 is the Cimarron toilet tank (now discontinued). Their parts diagram shows that there are 2 bolts on the K5692. I believe what you want is the Cimarron tank, which is K 4421. It has the 2-bolt configuration

Will this size tank fit a 1.6 GPF toilet?

Asked by Dom September 24, 2019
3
Answers

Hi, this is Laura with Kohler Co. I am happy to assist you with your question. Please call our Customer Care Center at 1-800-456-4537 (M-F, 8am-5pm CST) with the model number of your bowl as many of our bowls are compatible with 1.6 gpf and 1.28 gpf tanks. We need the bowl model number to confirm compatibility. Thank you for choosing KOHLER.

Are the bolt holes six inches apart?

Asked by Bobby August 23, 2019
2
Answers

Tank cracked after barley tightening the bolts

Will the tank 4636 0 fit the 4620 DA

Asked by RudyM80 August 19, 2019
1
Answer

Hi RudyM80, this is Sarah with Kohler Co. I'm glad to answer your question. No, the K-4636 tank is not a compatible replacement for the K-4620-DA. At this time, we do not offer another tank to take the place of the K-4620. Thank you for choosing KOHLER.

Will this fit K05381010

Asked by Ann August 18, 2019
1
Answer

Hi Ann, this is Sarah with Kohler Customer Service. We're glad to help you find the appropriate replacement tank. Please provide the toilet tank model number. This can be found stamped inside your tank on the back wall. It will be four digits long; likely starting with a K3 or K4. You can reach our Customer Service team directly at 1-800-456-4537 (M-F; 8am-5pm CST). Thank you for choosing KOHLER.

Wellworth Classic 1.28 GPF Single Flush Toilet Tank Only with Class Five Flushing Technology in Black Black - page 2

Customer Reviews

  • 168 Customer Reviews
  • 4.3 out of 5 stars overall
88% of customers recommended.
Overall Ratings
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Easy to install works and looks great
Easy to install works and looks great
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Great tank except it doesn't close all the way after flushing. I had to attach weights inside so ...
Great tank except it doesn't close all the way after flushing. I had to attach weights inside so it drops all the way to seal
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Single flush tank works beautiful thank you...
Single flush tank works beautiful thank you
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broken, not recommendable
Again for the 2nd time bowl came in broken, time spent on this is bot good
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Response from Kohler Product ExpertOctober 27, 2020
Hi juan, this is Sarah with Kohler Co. I'm truly sorry to hear your Wellworth Classic bowls have arrived damaged. This is nothing you should expect when you purchase a quality Kohler product. Please contact your place of purchase directly to notify them and to set up an exchange. We apologize for any inconvenience this delay may cause. Please call us at 1-800-4KOHLER with any questions. Sincerely, Sarah S. Kohler Customer Service
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