Korky QuietFILL Platinum Toilet Fill Valve 528MP

Universal Toilet Fill Valve

The Korky QuietFILL Platinum 528MP is a universal replacement fill valve designed to fit 99% of toilets, including two-piece models and most one-piece units. It replaces older ballcocks and worn valves to restore quiet, reliable tank refilling. Homeowners and plumbers can use it for standard repairs or upgrades across a wide range of toilet brands and tank styles.

Adjustable Height Range

Installation relies on a twist-lock mechanism that adjusts the valve height from 7.75 inches to 13.5 inches without tools. This range covers standard tanks and extra-tall models such as Kohler Wellworth and Portrait designs. The internal float design ensures consistent shut-off performance within this fixed adjustment window, limiting use in tanks outside these dimensions.

Chlorazone Red Rubber Construction

The valve uses exclusive chlorazone red rubber for seals and moving parts, chosen for long-lasting resistance to chlorine and hard water. This material specification determines the part's durability and sealing reliability over time. Buyers needing a different rubber compound or a valve certified for specific potable-water standards not mentioned here should verify compatibility before purchase.