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The Fluidmaster Leak Sentry Plastic Anti-Siphon Fill Valve, MPN 400LS, is designed for reliable toilet tank operation. This valve features an automatic locking action that notifies users of leaks, which helps in conserving both money and water. It is easy to install and suitable for various toilet models.
This fill valve ensures optimal operation of toilets by alerting users of potential issues while maintaining a consistent refill process.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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