Toilet Fill Valves
Products > Toilet Fill Valves
400LS - Universal Fill Valve, Leak Sentry®
![](https://www.fluidmaster.com/wp-content/uploads/2016/12/400LSProduct_530x530.png)
- Fixes noisy toilets and detects leaks
- Easy to install, Universal fit
- Leak Sentry prevents the automatic refill of a leaky tank
- Water-saving roller clamp lets you regulate the fill level in the bowl
- E-Z Twist height adjusts from 9″ to 14″ to fit most tanks
- 5 year warranty
The 400 LS has been independently rated to be one of the best fill valve for 2021 by SanitaryReview. To read the review, please click here: SanitaryReview
To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide
To learn how the Leak Sentry® fill valve works, please watch this short video:
Please watch this video to see how to install the Leak Sentry® fill valve:
If you would like to see how to connect the chain of the Leak Sentry® fill valve, please click here:
To check your toilet’s flush volume, please click here.
![](https://www.fluidmaster.com/wp-content/themes/fluidmaster/images/prop65warning.png)
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.