TLDR Review: Korky Flush Ball for Kohler
Verdict
The Korky 58BP Flush Ball is a reliable option for anyone needing to repair older Kohler toilets. It installs easily in about a minute, boasts superior material quality, and fits well in older models. However, there are occasional issues with sealing efficiency and misalignment due to packaging. Despite these minor setbacks, it remains a strong contender in the market, offering a cost-effective solution to toilet leaks that are hard to fix with original parts.
- Top pro:
- Compatible with older Kohler toilets, filling a gap for hard-to-find replacements.
- Top con:
- Concerns about potential misshaping from packaging impacting sealing efficiency.
Pros
- •Compatible with older Kohler toilets, filling a gap for hard-to-find replacements.
- •Easy one-minute installation that effectively stops leaks.
- •Product operates flawlessly and provides a reliable solution for toilet repairs.
- •Superior material quality compared to competing brands, highlighting durability.
- •Consistently performs well over time, maintaining leak prevention.
- •Perfect fit for older models like the Kohler model K-3406 'San Miguel'.
- •Design allows for proper flushing without the need to hold down the handle for long.
- •Reasonably priced for a widget that's considered a niche item.
Cons
- •Concerns about potential misshaping from packaging impacting sealing efficiency.
- •Performance doesn't fully match up to the resilience of original black flapper units.
- •Some reports of mixed success with multiple Kohler toilets using this flapper.
- •Seal quality deemed only satisfactory, with room for improvement.
- •Requires possible chain length adjustments for optimal flushing performance.
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How we researched this
About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Jun 6, 2026.
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