Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this fill valve kit for its straightforward installation, precise OEM fit, and quiet operation. Most report it resolved leaking or noisy toilets with minimal effort, even for non-plumbers. Reviewers highlight clear instructions, intuitive design, and exact compatibility with original equipment. The silent refill performance is frequently noted as a major improvement over noisy original valves. Many commend the high quality and durability compared to generic alternatives. A few mention slower fill times or difficulty removing old components, but these rare concerns are vastly outweighed by positive feedback.
Customer review summary generated by AI, including incentivized reviews.Not happy
The product was fine, having only self serve checkouts will keep me from comeing back.
Verified Purchaser
Replacement part
Exact part for the repair. Fit and worked perfectly.
From kohler.com
Repeat purchase
Repeat purchase as it works bery well and is easy to install.
Verified Purchaser
Kohler for Kohler works great!
Would RecommendWent in to get new fill valve...was going to get generic all in one kit but Josh suggested I just get this one specifically made for my Kohler and said it would be easy. It's almost like Josh does this a lot. :D Thank you Josh. It WAS easy and did work great. I really appreciate you.
Verified Purchaser
Not nearly as quiet as I hoped.
Purchased a few days ago to have quiet refill. Although a little quieter it is still noisy. Also, I have a Wellworth tank and the water does not raise to the indicated water line mark on refill tube. I adjusted the tube by turning to maximum length and also twisted the screw mechanism to max position. Level is about 1 inch below line on tube.
From kohler.com
Check out the model of the toilet before purchase
Would RecommendProduct fit precisely
Verified Purchaser
Fill Toilet Valve Kit Did NOT Work
Didn't work -- leak continued so got a new non-Kohler toilet
From kohler.com
Hello Paul Rold, this is Lisa with Kohler Co. I am sorry to read that you had concerns with your replacement fill valve. I understand this can be frus...
Good quality fill valve.
Would RecommendThis fill valve worked great as a replacement for the Kohler toilet I was working on.
Verified Purchaser
It works fine
Would RecommendSo far so good, No problems
Verified Purchaser
Easy to install and works well.
Installs easily.
Verified Purchaser
Faster fill
Perfect fit faster fill
Verified Purchaser
Hello flahill, my name is Paige with Kohler Co. I am sorry to hear that the GP1138930 fill valve is not filling your tank up to the appropriate level....