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7.6
Korky
Korky 100BP Toilet Flapper
The Korky 100BP Ultra High Performance Flapper is a versatile and easy-to-install solution for stopping running toilets and saving water. While its high-quality rubber construction generally ensures durability and a good fit, some users have experienced issues with leaks and adjusting the fit. If you're looking for a reliable flapper that fits most toilets, the Korky 100BP is a solid choice, although make sure to follow instructions carefully to avoid sealing issues.
Model: 100BPColor: RedUPC: 49057104064
Lowest at Amazon
$5.59 at AmazonLowest at any Popular Retailer
$5.59 at AmazonWhere to Buy
Prices last updated: May 12th 2026 12:50 am
Product Score
Based on professional reviews and customer feedback
7.6/10
Overall
7.6
Consumer
Why this score?
The Korky 100BP Ultra High Performance Flapper receives a moderate score primarily due to its easy installation and effectiveness in stopping leaks, as highlighted by several positive customer reviews. However, many users reported issues regarding durability, with complaints about the flapper being lightweight and lacking a solid seal, leading to leaks after a short period of use. Overall, it offers decent value, but potential buyers should be aware of its mixed reliability.
8+ Excellent6-8 Good4-6 Average<4 Poor
Score
The Korky 100BP Ultra High Performance Flapper receives a moderate score primarily due to its easy installation and effectiveness in stopping leaks, as highlighted by several positive customer reviews. However, many users reported issues regarding durability, with complaints about the flapper being lightweight and lacking a solid seal, leading to leaks after a short period of use. Overall, it offers decent value, but potential buyers should be aware of its mixed reliability.
7.6/10
Overall
Pros
- •Easy to install, even for beginners.
- •Helps to stop the toilet from running, saving water and money.
- •Provides a good fit for a variety of toilet models.
- •Made of higuality, long-lasting rubber material.
Cons
- •Some users experienced leaks, finding the flapper doesn't always seal well.
- •A few users mentioned the flapper feels flimsy.
- •Adjusting the flapper can be tricky for some, requiring patience and precision.
Bottom Line
The Korky 100BP Ultra High Performance Flapper is a versatile and easy-to-install solution for stopping running toilets and saving water. While its high-quality rubber construction generally ensures durability and a good fit, some users have experienced issues with leaks and adjusting the fit. If you're looking for a reliable flapper that fits most toilets, the Korky 100BP is a solid choice, although make sure to follow instructions carefully to avoid sealing issues.
What Reviewers Are Saying
Praised
easy to install23%
stopped toilet from running5%
good fit5%
high quality material5%
Criticized
flapper leaks23%
flapper is flimsy5%
adjusting is tricky5%
doesn't seal well5%
Customer Ratings
4.513,185 reviews
5
75%
4
14%
3
6%
2
2%
1
4%
Based on 13,185 reviews from Amazon
Professional Reviews
Discussion
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