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An American classic, this Wellworth high-efficiency toilet tank reduces water consumption without compromising on flushing power. At 1.28 gallons per flush, this economical tank conserves up to 16,500 gallons of water per year compared to a 3.5-gallon toilet. Its streamlined style matches with a coordinated bowl for a complete toilet.


  • Left-Hand Polished Chrome Trip Lever
  • Combines With The K-4197 Bowl To Create A Complete K-3577 Wellworth Toilet
  • Combines With The K-5393 Bowl To Create A Complete K-5296 Highline Toilet
  • Coordinates With Other Products In The Wellworth Collection
  • Kohlers Canister Flush Valve Harnesses The Natural Force Of Gravity And Optimizes Flushing Performance
  • 1.28 Gpf (4.8 Lpf)
  • Class Five Canister Optimizes The Flow Out Of The Tank
  • Harnessing Gravity And The Natural Powerful Reducing Cascade Of Water To Increase The Power And Effectiveness Of The Flush

KOHLER K-4436-96 Wellworth Classic Toilet Tank, 1.28 Gpf In Biscuit

KOHLER K-4436-96 Wellworth Classic Toilet Tank, 1.28 Gpf In Biscuit

Regular price $174.56 USD
Sale price $174.56 USD
In Stock: 25
Shipping Available to Select States
Finish: Biscuit

Model: K-4436-96

30 Days Return Policy

We offer a 30 days money back guarantee from the date your order is delivered to you. 

To be eligible for an return, your item must be unused and in the same condition that you received it must also be in the original packaging. 

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers, or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases. 

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

There are certain situations where only partial refunds are granted (if applicable) 
- Any item not in its original condition, is damaged or missing parts for reasons not due to our error 
- Any item that is returned more than 30 days after delivery 

Refunds (if applicable) 
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. 

Late or missing refunds (if applicable) 
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 
Next, contact your bank. There is often some processing time before a refund is posted. 
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable) 
Only regular priced items may be refunded, unfortunately, sale items cannot be refunded. 

Exchanges (if applicable) 
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to Great Northern Kitchen and Bath, 1221 Landmeier Road, Elk Grove Village, IL  60007, United States. 

To return your product, you should mail your product to Great Northern Kitchen and Bath, 1221 Landmeier Road, Elk Grove Village, IL  60007, United States 

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. 

Depending on where you live, the time it may take for your exchanged product to reach you may vary. 

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.


  • Length: 8"
  • Width: 19-11/16"
  • Height: 13"
  • Depth:

Product Information

  • Collection: Wellworth Classic
  • Style:
  • ADA: No
  • Material: Vitreous China
  • Installation Type:
  • Watersense: Yes
  • Flow Rate:
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