Fluidmaster Inc 504 Sure Fit Toilet Flapper

Product Description

The FLUIDMASTER INC 504 is a universal replacement toilet flapper designed to stop leaks and restore proper flush performance in residential toilets. The red Sure Fit flapper attaches to the existing mounting ears on the overflow pipe and includes a built-in adapter ring for overflow pipes that lack mounting ears. The kink-free metal chain connects the flapper to the flush handle arm for consistent, reliable operation. This part is installed by plumbers and knowledgeable DIYers performing routine toilet repair and maintenance.

The 504 is suited for standard residential toilet tank repairs where the original flapper or tank ball unit has worn, warped, or begun allowing water to pass continuously. Its universal design covers a broad range of toilet models without requiring custom fitting or additional adapters. The built-in adapter ring and dual-mount compatibility make it a practical stock item for service trucks and supply rooms handling repeat toilet service calls.

Key Features

• Universal design fits most standard residential toilets
• Replaces worn flappers and older tank ball units
• Attaches to existing mounting ears on the overflow pipe
• Built-in adapter ring accommodates overflow pipes without mounting ears
• Kink-free metal chain for consistent flush linkage

Compatibility

Designed as a universal OEM-style replacement for standard residential toilet flappers and tank ball units across most toilet brands and models.

Installation Notes

Installation is performed by licensed plumbers or experienced DIYers. Shut off the water supply valve at the base of the toilet and flush to empty the tank before removing the old flapper or tank ball assembly. Confirm the overflow pipe mounting configuration before selecting the attachment method. IPC guidelines apply to plumbing fixture repair in applicable jurisdictions.

Technical Specifications

• Weight: 3.07 pounds
• Unit of Measure: EA
• Package Quantity: 20

Standard Information

• Brand: FLUIDMASTER INC
• Manufacturer Part Number: 504