How do I know if my toilet cistern needs a 2-inch or 3-inch replacement flapper?

Measure the diameter of the drain opening at the bottom of your toilet tank with a ruler. Standard older gravity toilets typically measure roughly 2 inches across, whereas modern high-efficiency toilets feature wider 3-inch or 3.25-inch openings to release water faster with lower overall volume. This Kohler kit is for 1.28 GPF Sterling toilets, which usually have a specific valve size.

Why does water keep running into the toilet bowl after installing a new flapper?

A continuous trickle usually means the lift chain is set too tight and holding the flapper slightly open, the chain has excess slack catching underneath the seal, or the flush valve drain seat has mineral scale buildup that prevents the rubber seal from resting completely flat. Ensure the Kohler flapper is seated correctly and the chain has appropriate slack.

Is this Kohler GP1105825 flapper kit compatible with all Sterling toilets?

No, this genuine Kohler GP1105825 flapper and float kit is specifically designed for Sterling toilets that use a 1.28 GPF (gallons per flush) system. Always verify your toilet's GPF rating and brand to ensure compatibility and optimal performance. Using the wrong flapper can lead to leaks or inefficient flushing.

How to buy an original Kohler GP1105825 flapper kit in India?

You can buy the original Kohler GP1105825 flapper kit in India through crowcrowcrow. We import genuine Kohler parts directly from authorized US retailers and brand partners. All customs duties and GST are included in the listed price, and delivery is via ExpressBox tracked shipping, ensuring you receive an authentic, factory-sealed product.

What is the difference between this Kohler flapper and local alternatives?

This Kohler GP1105825 is a genuine OEM part engineered for specific Sterling 1.28 GPF toilets, ensuring a perfect fit and reliable flush. Local alternatives may not offer the same precise fit or durability, potentially leading to leaks or premature wear. Genuine Kohler parts provide guaranteed quality and performance.

Kohler GP1105825 Flapper with Float Kit | Sterling Toilet 1.28 GPF Replacement

Name: Kohler GP1105825 Flapper with Float Kit for Sterling Toilets | 1.28 GPF Replacement
Brand: Kohler
SKU: tkk0617
Price: 2040.00 INR
Availability: InStock

About this item

The Kohler GP1105825 Flapper with Float Kit is a genuine replacement part specifically designed for Sterling toilets utilizing a 1.28 GPF (gallons per flush) system. This kit includes both the flapper and the float, crucial components for maintaining a proper seal in your toilet tank and ensuring an efficient flush. Imported directly from authorized US retailers, this part guarantees the quality and longevity expected from Kohler.

This flapper and float kit is engineered to provide a perfect fit and reliable performance for your Sterling toilet. Its durable plastic construction is built to withstand regular use, preventing leaks and ensuring consistent flushing. By choosing a genuine Kohler part, you avoid compatibility issues and potential performance problems associated with generic alternatives, ensuring your toilet functions as intended.

For Indian customers, this genuine Kohler part offers a reliable solution to toilet maintenance. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping. Ensure your Sterling toilet continues to operate efficiently with this high-quality, imported replacement kit.

Key Features

For Sterling toilets with 1.28 GPF only
Item Package Dimension: 7.0078740086L x 3.7795275552W x 2.1653543285H inches
Item Package Weight - 0.110231131 Pounds
Item Package Quantity - 1
Product Type - TOILET
Genuine KOHLER product
For use with STERLING toilets only
Only for use on toilets with 1.28 GPF

Why choose this product

Authentic Kohler Quality for Your Sterling Toilet

Ensure your Sterling toilet functions flawlessly with the genuine Kohler GP1105825 Flapper with Float Kit. Unlike generic parts that may fit poorly or fail prematurely, this OEM component is engineered to the exact specifications of your toilet. Its durable plastic construction is designed for long-term reliability, preventing leaks and maintaining optimal water efficiency. By choosing authentic Kohler parts, you invest in the longevity and performance of your plumbing system, avoiding the hassle and potential water wastage associated with lower-quality alternatives. This imported kit guarantees the quality you expect from Kohler, directly to your doorstep.

Who Should Buy This vs. Who Should Skip

This Kohler GP1105825 Flapper with Float Kit is ideal for owners of Sterling toilets specifically designed for 1.28 GPF flush systems who need a genuine, high-quality replacement part. If your current flapper is leaking, worn out, or causing inefficient flushing, this kit will restore optimal performance. You should skip this if your Sterling toilet uses a different GPF (e.g., 1.6 GPF) or if you have a toilet from a different brand, as compatibility is crucial for proper function. Always verify your toilet's GPF rating and brand before purchasing to ensure a perfect fit.

How to use

Flush the toilet to empty the tank. Turn off the water supply valve behind the toilet and flush again to drain the tank as much as possible. Disconnect the chain from the flush lever. — Prepare for Replacement
Carefully detach the old flapper from the overflow tube's mounting pegs. Remove the old float mechanism from the overflow tube or flush valve assembly, noting how it was attached. — Remove Old Flapper and Float
Attach the new Kohler GP1105825 flapper to the overflow pipe pegs. Connect the new float to the overflow tube or flush valve, ensuring it's positioned correctly. Reconnect the chain to the flush lever, adjusting for slight slack. — Install New Kohler Kit
Turn the water supply back on and allow the tank to fill. Flush the toilet and check for leaks around the flapper seal. Ensure the float stops the water at the correct level. Adjust chain slack if needed. — Test and Adjust

Example scenarios

Typical situations where Kohler GP1105825 Flapper with Float Kit for Sterling Toilets | 1.28 GPF Replacement helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

A homeowner in Delhi notices their Sterling toilet with a 1.28 GPF system is constantly running, wasting water.

How this product helps

Replacing the old flapper with this genuine Kohler GP1105825 kit ensures a proper seal, stopping the leak and conserving water. Imported directly, it guarantees the quality needed for efficient operation.

Specifications & installation

Installation & usage

Installation Type	Toilet Tank Replacement Part
Directions	Ensure toilet is flushed and tank is empty. Remove old flapper and float. Attach new flapper to overflow pipe and connect float mechanism according to manufacturer's instructions. Test flush for proper seal and water level.
Shelf life after opening	12 months (category default for plumbing parts)
Contraindications	Not compatible with toilets not specified as Sterling brand or not using a 1.28 GPF flush system. Not suitable for toilets with vertical push-button flush mechanisms.

How we compare

Feature	Kohler GP1105825 Flapper	Others
Authenticity & Brand	Genuine Kohler GP1105825, imported from authorized US retailers.	Generic or local brand flappers, quality and origin may vary.
Compatibility	Specifically designed for Sterling toilets with 1.28 GPF.	May fit various toilets, but precise fit for 1.28 GPF Sterling is not guaranteed.
Material & Durability	Durable plastic construction for long life and high quality.	Material quality and longevity can vary significantly by brand.
Flush Performance	Ensures optimal water efficiency and a reliable seal for a proper flush.	Performance may be inconsistent, potentially leading to leaks or incomplete flushes.
Cost per Unit	1 kit at ₹2,040 — ₹2,040 per kit	Local flapper kits typically range from ₹200-₹600, depending on brand and features.

SKU	tkk0617
GTIN	00650531925497
Brand	Kohler
Model Number	GP1105825
Product Type	Toilet Flapper with Float Kit
Compatible Toilet Brand	Sterling
Compatible Flush Volume	1.28 GPF
Material	Plastic
Color	CP (Chrome Plated)
Package Quantity	1
Item Package Weight	0.05 kg (0.11 lbs)
Item Package Dimensions	17.6 cm H x 9.6 cm W x 5.6 cm L (7" H x 3.8" W x 2.2" L)
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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Kohler GP1105825 Flapper with Float Kit for Sterling Toilets | 1.28 GPF Replacement

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About this item

Key Features

Why choose this product

How to use

Example scenarios

Specifications & installation

Installation & usage

How we compare

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