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After exploring an incredibly huge number of articles and reviews by our smart Artificial Intelligence and ML systems; and detailed reprocessing, breakdown and infiltration by our specialist hi-technology experts, the golden shortlist for the Best Toilet Flush Valves (2021) is finally compiled.

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In order to find the Best Toilet Flush Valves (2021), our brilliant platforms and experts have taken many criteria into account such as product usability, user-friendly features and give buyer satisfaction, freedom from deficiencies or defects, conformity of standards, worthiness-for-money, service requirements, design quality, quality conformance to needs and regulations, safety, actual user satisfaction and many others. It is important to note that each user has different requirements so please use the below benchmarking as a guideline and not as a gospel. Nevertheless, in the benchmarking below you can undoubtedly find the overall best ones regardless of your needs.

Our dynamic platforms and pro hi-technology experts work hard to identify the best product options. We believe that our review rankings can help you simplify your purchase decision and select among the absolute Best Toilet Flush Valves (2021).

Best Toilet Flush Valves

SaleBest Choice No. 1
Fluidmaster 400CRP14 Universal Toilet Fill Valve and Flapper Repair Kit for 2-Inch Flush Valves, Easy Install
Fluidmaster 400CRP14 Universal Toilet Fill Valve and Flapper Repair Kit for 2-Inch Flush Valves, Easy Install
  • FIXES NOISY, RUNNING TOILETS: Toilet repair kit replaces inefficient fill and flush valves, and leaky flappers to help solve most common toilet fill problems
  • UNIVERSAL DESIGN: 400A toilet fill valve adjusts easily from 9 – 14 inches, fits most 2-inch flush valve toilets, and is ideal for use in 1.6 to 3.5 gallons per flush toilets or larger. Dual Flush: No
  • CORROSION RESISTANT: Solid frame 501 2-inch flapper features corrosion-resistant Microban material to prevent breakdown and leaks due to bacteria and is chlorine and hard water resistant
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • 5-YEAR WARRANTY: This product has a 5-year warranty
$22.59 −$12.64 $9.95
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SaleBest Choice No. 2
Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5' x 3.5' x 3'
Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5″ x 3.5″ x 3″
  • Kohler genuine part
  • Silent fill provides a gracious experience by filling the tank quietly
  • Multiple fill rate inserts are provided to optimize performance and conserve water
  • Adjustable to accommodate any height. Never use an abrasive material such as a brush or scouring pad to clean surfaces
  • Confirm shank color to determine correct part; If black, use this part and if grey, use GP1138930
$19.99 −$3.19 $16.80
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SaleBest Choice No. 3
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, Multi
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, Multi
  • Fix noisy, or slow filling fill valves with the quietest, most powerful toilet fill valve available
  • Easy to install, step-by-step instructions included
  • Universal fit for most toilet models and brands
  • Tank and Bowl water level adjustment dials to customize the perfect flush and save
  • 2X greater bowl refill for a more powerful flush for 1.28 and 1.6 GPF toilets; Pre-Installed shank washer cuts down repair time; EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks; Replace old fill valves with a high performance model; 7 year warranty
$15.99 −$2.01 $13.98
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SaleBest Choice No. 4
Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install
Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install
  • ENHANCES YOUR TOILET’S POWER: Toilet fill valve replaces old, inefficient valves and eliminates noise while generating 2X greater refill rates than standard fill valve designs
  • UNIVERSAL DESIGN: Fill valve adjusts easily from 10 – 15 inches and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets
  • ADJUSTABLE ROLLER CLAMP: Water-saving roller clamp lets you regulate the fill level in the bowl to help save water and money
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • 7-YEAR WARRANTY: This product has a 7-year warranty
$14.49 −$3.06 $11.43
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Best Choice No. 5
American Standard 3174105-0070A Champion Universal Replacement Flush Valve
American Standard 3174105-0070A Champion Universal Replacement Flush Valve
  • Universal replacement part for Champion 4 flushing system
  • For use with any champion line of two piece toilet
  • Replacement flush valve
  • 7 inch tube
  • 3.4 in. Chain length
$24.50
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Best Choice No. 6
Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts
Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts
  • ENHANCES YOUR TOILET’S POWER: Toilet fill valve with bolts and gasket replaces old or inefficient fill valves to repair a leaking toilet tank and optimize flush performance
  • UNIVERSAL DESIGN: Fill valve replaces any two-piece toilet flush valve and is ideal for use in 3.5 gallons per flush toilets
  • CORROSION RESISTANT: The 502 2-inch flapper features corrosion/hard water-resistant materials
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • 5-YEAR WARRANTY: This product has a 5-year warranty
$12.10
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SaleBest Choice No. 7
Kohler Genuine Part 1083980 3' Toilet Canister Flush Valve Kit, 2.50 x 1.50 x 9.00 inches
Kohler Genuine Part 1083980 3″ Toilet Canister Flush Valve Kit, 2.50 x 1.50 x 9.00 inches
  • Kohler genuine part
  • Canister flush valve kit for Kohler Cimarron toilets
  • 3 inches canister with a 3 inches outlet
  • Compatible with Kohler Cimarron tank model number K 4634
  • Look inside the back wall of the toilet tank to identify tank model number. Material: Plastic. Wipe surfaces clean and rinse completely with water immediately after applying cleaner. Rinse and dry any overspray that lands on nearby surfaces
$21.90 −$4.01 $17.89
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SaleBest Choice No. 8
Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install
Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install
  • LONG-LASTING DURABILITY: Toilet flapper with solid frame replaces leaky, corroded flappers, preventing twisting, ghost flushing, and running toilet problems
  • UNIVERSAL DESIGN: Adjustable flapper fits most 2-inch flush valve toilets and is ideal for use in high efficiency 1.28 to 3.5 gallons per flush toilets
  • ADJUSTABLE TO SAVE WATER: Dial flapper adjusts for maximum flush efficiency and to save water
  • CORROSION RESISTANT: Solid frame 502 2-inch flapper features corrosion-resistant Microban material to prevent breakdown and leaks due to bacteria and chlorine and is chlorine and hard water resistant
  • EASY INSTALLATION: Easily installs in 10 minutes or less to optimize flushing performance
$12.96 −$7.99 $4.97
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Best Choice No. 9
KOHLER GENUINE PART 1188999 2' Toilet Canister Flush Valve Kit
KOHLER GENUINE PART 1188999 2″ Toilet Canister Flush Valve Kit
  • KOHLER GENUINE PART
  • 3″ canister with a 2″ outlet harnesses the natural force of gravity and optimizes flush performance
  • Compatible with KOHLER Cimarron tank model number K-4421
  • Look inside the back wall of the toilet tank to identify tank model number
  • The number printed on the canister is a component number, which is a component of this kit.
$19.45
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Best Choice No. 10
Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black
Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It’s easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you’re doing toilet repairs. Adjustable from 7.75” to 13.5.”
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, refill adjuster, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
$9.98
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