Parts for Fluidmaster 5403P4 WaterSaving Long Life Toilet Flapper 3Inch Adjustable Red Keep your toilet sealing and flushing reliably while reducing water waste. This red, 3inch adjustable flapper is a replacement part designed for use with Fluidmaster 5403P4 repairs. It restores a positive tank seal, helps prevent phantom leaks, and lets you finetune flush performance for efficient water use. Key benefits Restores reliable sealing: Replaces worn or warped flappers that cause running toilets and leaks. Watersaving performance: Adjustable design lets you control flush volume for better efficiency and reduced water waste. Longlife durability: Built for extended service life compared with worn factory flappers, reducing the need for frequent replacements. Simple maintenance: Straightforward replacement and adjustment get your toilet back to normal quickly. Main attributes Model: Compatible with Fluidmaster 5403P4 parts and replacements. Size: 3inch diameter to fit 3' flush valves. Color: Red for easy identification and correct fit. Functionality: Seals the tank to hold water until flush activation; lifts and reseats reliably. Adjustability: Allows finetuning of flush lift/volume to optimize performance and water use. Performance: Designed to reduce leaks, stop continuous running, and enable consistent flushes. What it solves Stops continuous running toilets caused by deteriorated or misseated flappers. Reduces unnecessary water consumption by allowing precise flush adjustment. Avoids frequent service calls by providing a durable replacement with long life. Typical use cases Home bathroom : a degraded flapper to stop a toilet from running and lower your household water bill. Property maintenance: Use as a reliable replacement in rental units, apartments, or multifamily properties to reduce maintenance frequency and water waste. Bathroom upgrades: Swap in a watersaving, adjustable flapper to finetune flush performance after fixture changes or to improve efficiency in older toilets with 3inch flush valves. Installation notes Designed for straightforward DIY replacement: remove the old flapper, attach the flapper to the flush valve, connect the chain, and adjust the lift/length for the desired flush volume. Confirm fit with a 3inch flush valve before installation. Compatibility and fit Intended for 3inch flush valve applications and for use with Fluidmaster 5403P4 scenarios. Verify flush valve size and model compatibility before . Durability and care Rinse and inspect periodically; if you notice cracking, distortion, or loss of seal. Proper installation and occasional adjustment will maintain performance over time. a failing flapper with this red, 3inch adjustable unit to restore reliable flushing, eliminate leaks, and help conserve water without complex plumbing work.