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Korky 100BP — Review & Specs | Pricepect | Pricepect

Home Toilet FlappersKorky 100BP

Korky 100BP — image 1

Korky

Korky 100BP

Expert Review Analysis

The Korky 100BP Ultra High Performance Flapper is a universal 2-inch toilet flapper designed to maximize flush performance while conserving water across various gallon-per-flush ratings. Constructed from exclusive chlorine-resistant red rubber, it offers superior durability in harsh water conditions and features adjustable settings for precise water optimization. Backed by a 5-year warranty and made in the USA, it serves as a long-lasting replacement for standard toilets.

✓ Best for: Homeowners with standard 2-inch toilets in areas with chlorinated, hard, or well water; water-conscious upgrades for low-flow toilets; rental properties and contractors needing bulk universal replacements; and high-traffic households using 3.5 or 5 gpf toilets.✗ Not ideal for: Toilets with 3-inch valve openings; canister-style flapper mechanisms; non-standard oversized valves larger than 2.1 inches; and users seeking a silicone material alternative.

Pros

✓Red rubber material resists chlorine, bacteria, hard water, and well water treatment chemicals
✓Adjustable sealing ball and rotatable selector allow optimization for 1.28 to 5 gpf toilets

Best Seller Rank History

Now#2Best#1Worst#8 +6

Lower = better sales rank

Rating Trend

Rating4.5/ 5Reviews15,839+2,445 reviews

Specifications

General

BrandKorky

Model100BP

ColorRed

SizeSmall

Country of OriginUSA

Material

Rubber TypeExclusive red rubber (chlorine-resistant)

Compatibility

Valve Size2-inch universal fit

Performance

Water SavingsUp to 30% reduction in flush volume

Durability

Cycle ResistanceMaintains seal after 500+ cycles

Origin

ManufacturingMade in the USA

Dimensions & Weight

Height2.0 inches

Width7.0 inches

Depth4.0 inches

Weight0.0875 pounds

Research Sources

parisfarmersunion.com

thegranitegroup.com

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User Reviews

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4.5

(15,976 reviews)

$6.84

100BPRedSmall 5 Year Warranty

Toilet Flappers

✓

Lasts 5-10 times longer than standard flappers in chlorinated or hard water environments

✓Reduces flush volume by up to 30% without compromising flush strength or performance

✓Universal fit compatibility covers 95% or more of standard 2-inch valve toilets

✓Includes stainless steel chain and requires no tools for easy installation

✓Maintains seal integrity after 500+ cycles compared to competitors failing after 100 cycles

Cons

✗Initial rubber stiffness may require 1-2 flushes to break in and form a proper seal
✗Chain length may be too long for some tank configurations requiring manual trimming
✗Not compatible with non-standard oversized valves exceeding 2.1 inches in diameter
✗Does not fit 3-inch valve openings or canister-style flapper mechanisms
✗Occasional weak seal reported initially until the adjustment dial is properly tweaked

From Expert Reviews

Praised by Experts

✓Clorox experts recommend it as the longest-lasting flapper available on the market
✓Performance tests show it outperforms generics in chlorine resistance and cycle durability
✓Contractors appreciate the universal design for fitting multiple toilet brands without drops
✓Provides precise water control and high performance across a wide range of GPF settings

From User Reviews

Users Love

✓Users report exceptional longevity lasting up to 7 years in hard well water conditions
✓Installation is described as taking only 5 minutes with no tools required
✓Strong flush performance is maintained even when reducing water usage significantly
✓Fits specific brands like Kohler and Mansfield perfectly without modification
✓Saves hundreds of gallons of water yearly by optimizing flush volume effectively

Users Complain About

✗Chain is frequently reported as too long, requiring users to clip or cut links
✗Rare fit issues occur in older toilets mislabeled as 2-inch but actually having 3-inch valves
✗Initial seal may be weak until the user adjusts the dial or breaks in the rubber

Expert Opinion

Professional reviewers and plumbing experts, including those from Clorox, highly endorse the Korky 100BP as the longest-lasting flapper available. Editors at supply sites praise its high performance and precise water control, noting that it significantly outperforms generic brands in chlorine resistance tests. The product is highlighted for its universal design, making it ideal for contractors who need a single solution for various toilet brands, with no performance drop across different flush volumes.

What Users Say

Everyday consumers rave about the product's longevity, with many reporting it lasted up to seven years in harsh water conditions. Users frequently praise the ease of installation, noting it takes only five minutes without tools. Common themes include strong flush performance despite water savings and perfect fits for brands like Kohler. Recurring complaints focus on the chain being too long and occasional initial seal issues that require adjustment.

Common Complaints

Chain length requiring trimming, initial rubber stiffness affecting the seal until broken in, and rare fit issues in older toilets mislabeled as 2-inch.

What People Are Saying

“lasted 7 years in hard well water”
5/5 ★Walmart reviewsNov 2025

“5 minutes, no tools”
5/5 ★Walmart reviewsNov 2025

“saves hundreds of gallons yearly”
5/5 ★Walmart reviewsNov 2025

“fits Kohler/Mansfield perfectly”
5/5 ★Walmart reviewsNov 2025

“needed adjustment dial tweak”
4/5 ★Walmart reviewsNov 2025

“clipped 2 links”
4/5 ★Walmart reviewsNov 2025

How It Compares

vs. Fluidmaster 242

Advantages

✓Broader GPF range (1.28-5 vs 1.28-1.6)
✓Higher adjustability with ball and selector
✓Superior material durability (red rubber vs standard rubber)

Disadvantages

✗Fluidmaster has a similar 5-year warranty
✗Korky offers up to 30% water savings vs 20%

Choose Korky 100BP for harsh water conditions and older toilets requiring higher GPF support.

vs. Kohler GP85060

Advantages

✓Universal fit for 95%+ of toilets vs Kohler-specific fit
✓Broader GPF range (1.28-5 vs 1.28-1.6)
✓Higher adjustability for performance optimization

Disadvantages

✗Kohler uses silicone material which may have different feel
✗Kohler has a shorter 1-year warranty vs Korky's 5 years

Choose Korky 100BP for universal compatibility and longer warranty coverage.

vs. Korky Ultra 2017

Advantages

✓Broader GPF range (1.28-5 vs 1.28-1.6) for older toilets
✓Better water savings (up to 30% vs 25%)

Disadvantages

✗Korky Ultra 2017 has a longer 10-year warranty vs 5 years

Choose Korky 100BP for versatility with older high-flow toilets, or the 2017 for maximum warranty length.

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