Fluidmaster pro45b Toilet Tank Fill Valve Brass Shank

Product Description

The FLUIDMASTER pro45b is a toilet tank fill valve designed for reliable, long-life performance in residential and commercial toilet installations. It includes a 1/2-inch heavy-duty brass shank, which sets it apart from standard plastic-shank fill valves and provides a more durable connection at the tank-to-supply line interface. The valve features an anti-siphon design that prevents backflow and contamination of the potable water supply. Height is adjustable from approximately 9 inches to 14 inches to accommodate a range of tank configurations. Ultra-quiet operation and minimal water hammer make it well suited for occupied buildings where noise is a concern.

This fill valve is intended for toilet tank installations in both residential and light commercial applications. It is part of the Pro Series product line and is sold through professional plumbing supply channels. The fast refill rate reduces cycle time after each flush, which is especially useful in high-traffic restroom settings. A licensed plumber or experienced service technician would typically specify this valve when replacing a worn or noisy OEM fill valve, or during new toilet rough-in work.

Key Features

• 1/2-inch heavy-duty brass shank for a durable tank-to-supply connection
• Anti-siphon design prevents contamination of the potable water supply
• Height adjustable from approximately 9 inches to 14 inches
• Ultra-quiet operation with minimal water hammer
• Fast refill rate reduces tank cycle time
• 5-year warranty

Compatibility

Designed as an OEM-style replacement fill valve for residential and light commercial toilet tanks requiring a standard bottom-inlet fill valve with a 1/2-inch shank connection.

Installation Notes

Installation should be performed by a licensed plumber or qualified technician in accordance with local plumbing codes and the IPC. Shut off the water supply valve and flush the toilet to empty the tank before removing the existing fill valve. Avoid overtightening the brass shank nut, as this can crack the tank. Verify the water supply line connection is secure and leak-free before returning the system to service.

Technical Specifications

• Item Type: Fill Valve
• Used On: Toilet
• Shank Material: Brass
• Shank Size: 1/2 inch
• Height Adjustment Range: Approximately 9 inches to 14 inches
• Packaging Quantity: 25 per case
• Warranty: 5 Year

Standard Information

• Brand: FLUIDMASTER
• Manufacturer Part Number: pro45b