Best Toilet Replacement Parts (2026 Guide)
We selected items based on aggregated user ratings, review volume, brand recognition, and relevance to common replacement needs across flushometers, pressure-assisted valves, urinal diaphragms, and tank seals
Top Picks
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1
Sloan A-1001-A Diaphragm Rebuild Kit for Regal Flushometers
Diaphragm rebuild kit for Sloan Regal flushometers with 4.5 GPF. Includes parts for a successful install and optimized water usage. Customers note easy installation and good value, with some reports of leakage concerns
- complete parts kit
- water-saving design
- easy installation
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2
Replacement flush valve cartridge kit for Flushmate 503H
Replacement flush valve cartridge kit designed for Flushmate systems, delivering regulated water flow for consistent performance. Includes duckbill valve, filter screen & lower supply filter for easy maintenance. Customers note ease of installation and clear instructions
- regulated GPF for consistent flush
- includes complete valve cartridge kit
- corrosion-resistant construction
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3
Sloan Urinal Diaphragm Assembly 1.0 GPF (A-1042-A) for Royal Flushometers
Sloan urinal diaphragm assembly with PERMEX synthetic rubber and dual-filtered bypass ensures consistent flush. Replacement for Royal Flushometers; helps limit water usage and maintain proper flushing
- PERMEX diaphragm
- dual-filtered bypass
- designed for Royal Flushometers
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4
Sloan Royal Urinal Diaphragm Tune-Up Kit 1.5 GPF
Sloan Royal urinal diaphragm tune-up repair kit for 1.5 GPF flushometers. Improves efficiency and water usage; users note a good fit and value for money
- complete diaphragm assembly kit
- water-usage reduction design
- compatibility with Sloan Royal 1.5 GPF
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5
Kohler GP1059291 Toilet Tank Canister Valve Seal 6-pk
Kohler genuine part GP1059291 seal set for toilet tank canisters. Yellow seal resists wear from chemicals and use. customers note easy installation
- genuine Kohler part
- yellow seal for leak resistance
- 6-pack value
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6
Sloan Royal Water Closet Diaphragm Assembly (1.28 GPF) for Royal Flushometers
Replacement diaphragm assembly for Sloan Royal flushometers with PERMEX rubber and dual-filtered bypass. Designed to ensure consistent flush amounts and reduce water waste. Customer note: high-quality fit and good value
- PERMEX diaphragm material
- dual-filtered bypass
- designed for consistent flush
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7
Sloan Royal Diaphragm Assembly 3.5 GPF for Royal Flushometers
Diaphragm assembly kit with PERMEX synthetic rubber and dual-filtered bypass for Royal Flushometers. Designed to replace worn diaphragms and optimize flush accuracy. Customer notes good quality, perfect fit, and value
- PERMEX diaphragm material
- Dual-filtered bypass
- Royal Flushometer compatibility
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8
Sloan A-1050-A High Efficiency Urinal Diaphragm Assembly
The Sloan A-1050-A urinal diaphragm assembly replaces worn units and features a Dual-Filtered Fixed Bypass for controlled flushes. It is designed as a replacement part for Royal Flushometers; ensures consistent flushing and improved water efficiency
- dual-filtered fixed bypass
- OEM replacement part
- designed for consistent flushes
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9
Washlet deodorizer carbon filter for Toto THU6474-01/THU6072
deodorizer cartridge with activated carbon filter for Toto washlets; helps reduce odors and keep bathroom smelling fresh. customers note good fit and odor control, with mixed views on lifespan
- activated carbon deodorizing filter
- compatible with multiple Toto washlets
- 3-6 month replacement guideline
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10
Saillong 12-Pack Toilet Fill Valve Replacement
Universal toilet fill valve replacement kit with height adjustment and quiet operation. Easy to install and refills quickly, with automatic shutoff to avoid overflow. Customers note good build quality and fit, with mixed feedback on adjustability
- universal G15/16" inlet compatibility
- 813'' height adjustment
- quiet, automatic refill