Best Toilet Repair Kits (2026 Guide)
We selected kits with high user ratings and substantial review volume, prioritizing compatibility, included parts, installation clarity, and brand reliability
The Verdict
- Best Overall: Fluidmaster PerforMAX 3 in. Everything Toilet repair kit — Best for 3-inch valves: designed for 3-inch flush valves with comprehensive tank-to-valve components for straightforward home repairs
- Best Value: Korky 3-inch Toilet Repair Kit — Best for DIY home repairs: a 3-inch toilet repair kit with user-friendly parts aimed at common household toilet fixes
This roundup covers top-rated toilet repair kits and flushometer diaphragm rebuild kits for residential and commercial plumbing repairs, selected for high user ratings and substantial review volume. Picks emphasize compatibility, included components, and ease of install to help you find the right kit for home toilets, urinals, or flushometers
Top Picks
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1
Best Overall Fluidmaster PerforMAX 3 in. Everything Toilet repair kit
Best for 3-inch valves: designed for 3-inch flush valves with comprehensive tank-to-valve components for straightforward home repairs
Repair kit for 3 in. flush valve toilets with universal fit and included tools. Quick and easy installation with adjustable components; kit replaces multiple parts for a unified repair. Customer notes ease of installation and functional improvement
- universal 3 in. flush valve compatibility
- includes install tools
- adjustable water-use and height
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2
Sloan A-1104-A Diaphragm Rebuild Kit for Royal Flushometers
Best for Royal flushometers: a diaphragm rebuild kit tailored for commercial Royal flushometer repairs with OEM-style components
Diaphragm rebuild kit for Sloan Royal flushometers (1.28 GPF) with a PERMEX diaphragm. Includes components for rebuild and compatibility with Sloan Royal line. Customers note easy installation and complete kit for repair
- PERMEX synthetic rubber diaphragm
- chloramine resistance
- genuine Sloan parts
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3
Sloan A-1106-A Urinal Diaphragm Rebuild Kit (0.5 GPF)
Best for urinals: a diaphragm rebuild kit configured for 0.5 GPF urinals to restore reliable commercial urinal performance
Sloan A-1106-A diaphragm rebuild kit for Royal flushometers with 0.5 GPF. Includes components for rebuild and features a chloramine-resistant PERMEX rubber diaphragm. Customer notes it fits well, is easy to install, and provides complete repair parts
- PERMEX rubber diaphragm
- chloramine resistance
- genuine Sloan parts
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4
Sloan A-1102-A Diaphragm Rebuild Performance Kit for Royal Flushometers
Best for mid-range flushometers: a performance rebuild kit made for 3–5 GPF Royal-style flushometers to improve flush consistency
Diaphragm rebuild kit for Sloan Royal flushometers with 3.5 GPF. Includes PERMEX synthetic rubber diaphragm for chloramine resistance and compatible components for repair. Customers note easy install and complete kit
- PERMEX rubber with chloramine resistance
- comprehensive rebuild kit contents
- genuine Sloan parts compatibility
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5
Sloan A-1101-A Royal Diaphragm Rebuild Kit (1.6 GPF)
Best for 1.6 GPF fixtures: a Royal diaphragm rebuild kit matched to 1.6 GPF systems for dependable commercial flush operation
Diaphragm rebuild kit for Sloan Royal flushometers with 1.6 GPF. Includes necessary components for a repair; features a PERMEX synthetic rubber diaphragm with a filtered bypass. Customers note easy installation and complete kit for repair
- permex rubber diaphragm
- compatibility with Sloan Royal line
- genuine Sloan parts
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6
Best Value Korky 3-inch Toilet Repair Kit
Best for DIY home repairs: a 3-inch toilet repair kit with user-friendly parts aimed at common household toilet fixes
Complete toilet repair kit for running, noisy, no/slow refill, and no/weak flush toilets. Easy to install and compatible with typical toilets; does not fit Kohler or 1-piece toilets
- all-in-one kit
- easy installation
- covers multiple toilet issues