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Description
3-Inch Toto Toilet Flapper Replacement - 2 Pack3 Inch Toto Toilet Flapper Replacement Key Features Engineered specifically for 3 inch flush valves to ensure a high volume, leak proof seal. Constructed from specialized chloramine resistant rubber to prevent warping and degradation in harsh water conditions. Integrated adjustable float allows for precise water volume control per flush, optimizing water usage. Heavy duty stainless steel chain and hardware designed to resist corrosion and prevent
3-Inch Toto Toilet Flapper Replacement
Key Features
- Engineered specifically for 3-inch flush valves to ensure a high-volume, leak-proof seal.
- Constructed from specialized chloramine-resistant rubber to prevent warping and degradation in harsh water conditions.
- Integrated adjustable float allows for precise water volume control per flush, optimizing water usage.
- Heavy-duty stainless steel chain and hardware designed to resist corrosion and prevent kinking during operation.
- Reinforced hinge points provide a consistent pivot motion for reliable closure after every flush cycle.
Replaces / Cross-Reference Part Numbers
- Toto: THU138S, THU140S, THU175S, THU253S, THU275S, THU277S, THU299S, THU331S, THU332S, THU347S, THU369S, THU499S, THU500S
- Korky: 2023BP / 2023BM
- Jones Stephens: C04009
Compatibility & Fitment
- Toto G-Max Flush Systems
- Toto Power Gravity Models
- Standard 3-inch flush valves for Toto models: Drake, Eco Drake, Ultramax, and Supreme
- It is NOT compatible with the following Toto Power Gravity Toilet Models: CST43SD, CST744SD, CST44SLD, CST743SDB, CST744SDB, CST744SLDB.
When to Replace
- Ghost Flushing: The toilet tank refills periodically when not in use.
- Running Water: A constant sound of water trickling into the bowl after the tank has filled.
- Slow Leak: Water level in the tank drops below the overflow pipe over time.
- Material Degradation: The flapper feels slimy to the touch or leaves a black residue on fingers, indicating the rubber is breaking down.
- Improper Seal: The flapper appears warped or no longer sits flush against the valve seat.
Installation Tips
- Shut off the water supply valve behind the toilet and flush to empty the tank.
- Remove the old flapper by unhooking the ears from the overflow pipe pegs and disconnecting the chain from the trip lever.
- Clean the flush valve seat with a soft cloth to remove mineral deposits or debris that could prevent a proper seal.
- Attach the new flapper ears to the pegs and adjust the chain length; there should be approximately 1/4 inch of slack when the lever is at rest.
- Turn the water back on and perform a test flush to ensure the flapper lifts fully and seals tightly without catching on the chain.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1648 reviews
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Product Reviews
★★★★★ 4
Very cool and smooth
Color: Burgundy, Size: Standard (20'' x 26'')
Excellent quality but sold with the expectation of some shrinkage. Once I ran them through a med high dryer the fit was great. They live up to the idea that they are made for hot sleepers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
★★★★★ 5
Soft and durable
Color: Olive, Size: King (20'' x 36'')
Second set of these sheets I’ve purchased. One color for fall and winter and another for spring and summer- thick as a sail, soft as silk, cooling as a breeze. I only use bamboo sheets and these ones are better quality than other brands I’ve tried. 10/10
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Reviewed in the United States on March 16, 2026
★★★★★ 5
A huge bamboo fan approves!
Color: Dream Blue, Size: Queen (20'' x 30''), Color: Dream Blue, Size: Queen (20'' x 30'')
I switched to bamboo sheets a few years ago and will never go back. I needed more pillow cases and got these - great quality and price AND family owned is a big deal to me. Will definitely order more. Buttery soft and thicker than other brand I’ve been using.
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Reviewed in the United States on April 24, 2026
★★★★★ 1
Product is not as described
Color: Charcoal, Size: Queen (20'' x 30'')
Bought 6 of these because I believed the reviews and the product description.. I don’t think these are bamboo because they don’t stay cool. The appearance of them are great.. but that’s the only good quality and I can’t return them because I got rid of the boxes they came in. Won’t be buying anything else from this company
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Finally sleeping through the night without waking up drenched
I was dealing with night sweats almost every night. Waking up overheated, flipping my pillow over constantly, just uncomfortable and restless. It was starting to mess with my sleep in a real way.
Since switching to this cooling pillowcase (and pairing it with a cooling blanket), it’s been a completely different experience. I’m actually staying cool through the night and not waking up soaked or irritated.
The fabric feels cool to the touch right away and doesn’t trap heat like a regular pillowcase. It’s smooth, comfortable, and still feels good after washing. Not stiff or weird like some “cooling” materials can be.
Is it magic? No. But does it noticeably reduce overheating and help you sleep better? Absolutely.
If you run hot at night or deal with night sweats, this is one of those small upgrades that makes a big difference. I wish I had bought it sooner.
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Reviewed in the United States on March 19, 2026