Lavelle Industries Inc 528Z Korky Waterwise Fill Valve

Product Description

The LAVELLE INDUSTRIES INC 528Z is the Korky WaterWise fill valve, a toilet tank fill valve designed to reduce water waste caused by flapper leaks. When the flapper leaks, a standard fill valve continuously refills the tank. The 528Z detects this condition and automatically shuts off, preventing water loss until the issue is addressed. The valve features adjustable height to fit a range of toilet tank configurations and operates quietly, making it suitable for residential bathroom installations. Licensed plumbers and experienced DIYers alike install this valve as a direct drop-in replacement during toilet service calls.

The 528Z is suited for residential toilet tank applications where water conservation is a priority. Its automatic shutoff response to flapper leaks makes it a practical upgrade over standard fill valves in high-use bathrooms. The adjustable height design accommodates varying tank depths without modification. Installers working on water-efficiency retrofits or toilet tune-up calls will find this valve straightforward to fit in most standard two-piece and one-piece toilet tanks.

Key Features

• Automatic shutoff activates when flapper leaks are detected, reducing wasted water
• Adjustable height fits a variety of toilet tank depths
• Quiet operation minimizes noise during refill cycle
• Drop-in design suited for replacement and retrofit installs

Compatibility

Designed as an OEM-style replacement fill valve for standard residential toilet tanks.

Installation Notes

Installation is performed by a licensed plumber or qualified DIYer familiar with toilet tank components. Shut off the water supply at the angle stop valve below the tank and flush to drain residual water before removing the old fill valve. Follow local plumbing code requirements, which may reference IPC or applicable state amendments. Do not overtighten the locknut on the tank shank, as this can crack the tank.

Technical Specifications

• Weight: 9.75 pounds
• Package Quantity: 12 per case
• Unit of Measure: EA

Standard Information

• Brand: LAVELLE INDUSTRIES INC
• Manufacturer Part Number: 528Z