The Fluid master 400LS Leak Sentry Universal Water Saving Toilet Fill Valve has all the same benefits of the 400A fill valve, plus it comes with leak prevention technology and a water-saving roller clamp. Leak prevention technology stops the automatic refill of the toilet tank due to a worn or faulty flapper. The included roller clamp allows you to regulate the amount of water refilling the toilet bowl for maximum efficiency. Quickly replace inefficient, outdated and leaky toilet fill valves with this water-saving design. Best for use in 3.5 plus GPF toilets.

• Fixes noisy toilets and detects leaks
• 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 in. to 14 in. to fit most tanks
• Easy to install
• 5-year warranty