Fluidmaster Toilet Fill Valve - PRO45

Fluidmaster Toilet Fill Valve - PRO45

Restore proper toilet tank refilling with this Fluidmaster Toilet Fill Valve - PRO45. A toilet fill valve controls how the tank refills after each flush and helps maintain the correct water level.

PRO45 is a toilet fill valve used when the original valve runs continuously, refills slowly, makes excessive noise, or no longer shuts off at the correct water level.

Compatibility: Match by toilet application, tank configuration, valve height range, and refill style.

Please confirm the toilet application, tank configuration, and fill-valve size range before ordering.

Is it time to replace?

• Common Symptoms: Toilet runs continuously, tank refills slowly, shutoff is inconsistent, or the fill valve makes loud refill noise.
• Visible/Sensory Cues: Water level problems, hissing after fill, leaking valve body, or a fill valve that no longer adjusts or shuts off properly.

Pro Tip: Set the refill height carefully after installation so the tank and bowl fill correctly without wasting water.

Technical Specifications