


The Fluidmaster K-400H-039 PerforMAX High Performance Toilet Fill Valve and Adjustable 2 in. Flapper Kit offers the top choice to fix your toilet’s performance and saving water.
This universal design, is made for 2 in. flush valve toilets including Kohler, Toto, American Standard and more. Quickly solve common toilet problems like noisy, leaky or running toilets. Featuring the high performance PerforMAX Toilet Fill Valve the quietest, most powerful fill valve on the market. Now featuring both tank and bowl water level adjustment dials, to quickly customize your water use.
- The PerforMAX fill valve and 2 in. Flapper Kit is the solution to make your toilet run like new
- Fast and easy to install
- PerforMAX Water-Saving Toilet Flapper included to save water use per flush
- Adjustable fill valve height to fit more tanks
- Built in Microban flapper fights breakdown due to bacteria on the flapper itself



The Fluidmaster K-400H-039 PerforMAX High Performance Toilet Fill Valve and Adjustable 2 in. Flapper Kit offers the top choice to fix your toilet’s performance and saving water.
This universal design, is made for 2 in. flush valve toilets including Kohler, Toto, American Standard and more. Quickly solve common toilet problems like noisy, leaky or running toilets. Featuring the high performance PerforMAX Toilet Fill Valve the quietest, most powerful fill valve on the market. Now featuring both tank and bowl water level adjustment dials, to quickly customize your water use.
- The PerforMAX fill valve and 2 in. Flapper Kit is the solution to make your toilet run like new
- Fast and easy to install
- PerforMAX Water-Saving Toilet Flapper included to save water use per flush
- Adjustable fill valve height to fit more tanks
- Built in Microban flapper fights breakdown due to bacteria on the flapper itself















