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PerforMAX 3-in Universal Adjustable Toilet Fill Valve

Ratings & Reviews for Fluidmaster PerforMAX 3-in Universal Adjustable Toilet Fill Valve

4.7
2044
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Review
  4.7 out of 5
2048 Reviews


92% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this fill valve for its straightforward installation and reliable performance. Most highlight how simple and quick the setup is, requiring only basic hand tools. Reviewers consistently report the valve works exactly as intended, effectively resolving common issues like slow filling or overfilling. Many appreciate the dual adjustment capability for both tank and bowl water levels and its universal compatibility across toilet models. The quiet operation is frequently noted as an improvement over older models. A few customers mention occasional noise during filling or rare leaks, though these represent isolated experiences. Overall, most consider it an excellent DIY solution for toilet repairs.

Customer review summary generated by AI, including incentivized reviews.
2048 Customer Reviews

Jim, Fluidmaster 400H

 Would Recommend

Excellent instructions, worked great, easy install.

February 16, 2026
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Great new toilet valve.

Works quietly and fast.

February 16, 2026
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Super easy to install. Works like a champ.

 Would Recommend

Super easy to install. Works like a champ. I'm not anticipating more than 3 years as plastic in water...

February 16, 2026
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nice product

 Would Recommend

easy to install

February 13, 2026
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Hand tighten per directions

Easy installation, clear instructions

February 11, 2026
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Replacement for Kohler fill valve of similar desig

 Would Recommend

This is made by FluidMaster, and I've always had good results with their products. I've only had this one installed for a couple of days so far, to replace a failed Kohler item that looks similar, and it is working fine thus far. Time will tell.

February 10, 2026
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Plumbing

 Would Recommend

Easy installation and works great.

February 8, 2026
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Easy install

 Would Recommend

Fit perfect

January 31, 2026
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It's fine

 Would Recommend

As expected

January 28, 2026
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easy to install

 Would Recommend

works perfectly

January 28, 2026
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DIY. Don't need a pro....

 Would Recommend

Pretty straight forward

January 28, 2026
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