Anti-siphon Ballcock, Adjustable, 400a, 3-pk.

Introducing the Fluidmaster 400A adjustable anti-siphon ballcock, now available at Lewistown True Value in Lewistown, MT. This versatile and reliable toilet fill valve is designed to improve the performance of your toilet by fixing noisy or slow fill issues. Whether you are a homeowner or a maintenance professional in Lewistown, this essential plumbing component offers an easy and effective solution to outdated or malfunctioning toilet fill valves.

• Adjustable length: Extends from 9 and a half inches to 14 inches, allowing for a customizable fit to suit various toilet tank sizes.


• Anti-siphon design: Prevents backflow and contamination, ensuring safe and hygienic water supply to your toilet.


• Universal compatibility: Fits most toilet models, making it a convenient replacement part for a wide range of toilets.


• Easy installation: Designed for straightforward setup, saving time and effort during repairs or upgrades.


• Improves toilet performance: Effectively addresses noisy or slow filling issues, restoring your toilet’s proper function.

Imagine upgrading your bathroom plumbing in Lewistown with this adjustable anti-siphon ballcock. Whether you are renovating an older home or maintaining commercial facilities, this fill valve ensures efficient water flow and quiet operation. It is ideal for fixing common toilet problems such as slow tank filling or disruptive noises, enhancing comfort and convenience in daily use. Professionals and DIY enthusiasts alike will appreciate the universal fit and ease of installation, making it a practical choice for a variety of plumbing projects.



In summary, the Fluidmaster 400A adjustable anti-siphon ballcock is a dependable and essential component for anyone looking to replace outdated or broken toilet fill valves in Lewistown, MT. Available at Lewistown True Value, this product combines functionality, safety, and ease of use to help you maintain a smoothly operating toilet system.