American Standard Universal Toilet Fill Valve, 400A Replacement with Installation Components

The American Standard Universal 400A toilet fill valve is a replacement part for toilet tank repairs, supplied with the valve and six installation and refill components.

• Universal replacement design — suitable for most applications, with toilet model compatibility to check.
• Made for high-use areas — a replacement option for frequently used toilets.
• Seven components included — the valve, shank washer, lock, coupling nuts, coupling washer, refill tube and refill tube clip.
• Easy to install — designed for a straightforward toilet tank repair.
• Reliable performance — engineered as an American Standard replacement component.

A toilet fill valve is part of the tank’s refill system. The American Standard 400A is made for replacing a fill valve during toilet tank maintenance or repair, helping restore the tank’s refill function with a purpose-selected replacement part. Its universal design makes it suitable for most applications, while checking the toilet model helps confirm the fit before installation.

What is the American Standard 400A fill valve for?

It is a replacement fill valve for toilet tank repair. The valve works within the tank refill system, and the included refill tube and clip are components of that system. This makes the 400A a practical choice when the repair calls for replacing the fill valve rather than purchasing its associated parts separately.

• Identified as a universal American Standard replacement fill valve.
• Designed for most applications and high-use areas.

What parts come with this toilet fill valve?

The set contains the valve plus the washers, lock, coupling nuts, refill tube and refill tube clip needed as accompanying components. These parts support the valve’s installation and refill-tube setup in the tank.

• One valve and one shank washer.
• One lock, coupling nuts and coupling washer.
• One refill tube and one refill tube clip.

How do I know if the 400A will fit my toilet?

The 400A is described as a universal replacement for most applications, but compatibility should be checked against your toilet model. Confirming the model before starting the repair helps you choose a fill valve intended to work with your toilet.

• Use your toilet model as the compatibility reference.
• The universal design does not replace the need to verify model fit.

Is the American Standard 400A difficult to install?

American Standard identifies this fill valve as easy to install. The included shank washer, lock, coupling nuts and coupling washer are installation components, while the refill tube and clip are included for the refill setup.

• Supplied with its listed installation and refill components.
• Intended for toilet tank replacement and repair.

The American Standard 400A suits homeowners and maintenance teams replacing a toilet tank fill valve, especially in high-use areas where a universal replacement is useful. It is intended for toilet models whose compatibility has been confirmed; its included valve, washers, fittings, refill tube and clip make it a complete set of the listed replacement components.