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FLUIDMASTER Pro 45 anti-siphon fill valve adjustable height black and gray

FLUIDMASTER

FLUIDMASTER Pro 45 Anti-Siphon Adjustable Fill Valve

SKU CH-DGCX-4399T

Adjustable anti-siphon fill valve fits most tanks with a 9 to 14 inch height range

  • Product typeAnti-Siphon
  • Anti-siphon design prevents water contamination
  • Adjustable height from 9 to 14 inches fits most tanks
  • Replaces most old-style fill valves and floats
  • Pro 45 model delivers reliable fill performance
  • Black and gray finish suits standard toilet tanks

Fill valve with anti-siphon protection

The FLUIDMASTER Pro 45 is a replacement fill valve designed for standard residential toilet tanks. It installs in place of most older ballcock assemblies and includes an anti-siphon mechanism that prevents back-flow into the potable water supply. The valve body adjusts in height to suit a range of tank sizes.

Suits DIY toilet repairs.

Homeowners and maintenance staff replacing a noisy or leaking fill valve in a gravity-fed tank will find the adjustable height convenient. The valve is not designed for flushometer-style commercial toilets, pressure-assist vessels or tanks that require a proprietary manufacturer-specific valve.

Adjustable from 9 to 14 inches for broad tank

The telescopic shank extends from 9 to 14 inches, covering the majority of two-piece and one-piece residential tanks. Very shallow tanks under 9 inches or unusually deep tanks over 14 inches fall outside the adjustment range and would need a different solution.

How it compares

Measured against everything we stock in Toilet Seats & Add-Ons, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 427 comparable items (median $17.99).

Specifications

Product
Brand nameFLUIDMASTER
Product typeAnti-Siphon

Questions about this item

Does the Pro 45 valve require a standard 1/2 inch water supply line to connect?

The Pro 45 fill valve connects to a standard toilet supply line; ensure the existing line reaches the valve shank after height adjustment.

Will the adjustable 9 to 14 inch height range fit the tank of an older toilet I am keeping?

The valve height adjusts from 9 to 14 inches, allowing it to replace most old-style fill valves and floats in existing tanks.

How can I confirm the anti-siphon feature is working after installing the Pro 45?

After setup, verify the critical level mark on the valve body sits at least one inch above the overflow pipe to ensure anti-siphon protection.

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