Kohler K-1138648 Toilet Flapper
WHAT OUR CUSTOMERS SAY…
“Fast, friendly, knowledgeable, hard to find items not carried by most big box stores. ”
-William S.
02/23/2026
$15.27
The Kohler K-1138648 is a genuine replacement flapper assembly for various Kohler toilets, including the San Raphael K-3722 model. It is a critical component for controlling water flow in the flushing system.
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Kohler Toilet Flapper
K-1138648
- Kohler GENUINE Part
- Replacement flapper with float kit for various Kohler toilets
- For San Raphael K-3722
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Common questions about this product
Is this item the original manufacturer's recommended replacement part?
Yes, this is the OEM recommended part.
Is this the correct item for my application?
If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.
We will make sure you have the right part.
WHAT OUR CUSTOMERS SAY…
“Hi,
I just wanted to write back and tell you how much I appreciate the quick response and service. I'm old, and good customer service used to be the norm. Not anymore, so when a company gives GREAT customer service, I like to thank them for it. I really appreciate you taking the time to answer my question, and also the fast shipping on my part. Have a great day!
...Steve
”
-Steve
09/27/2024