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5 Best Toilet Flush Valves of 2025

Last Updated - 2025/04/25

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SEIWEI

SEIWEI Toilet Flush Valve Replacement Kit, Dual Flush Valve, ABS, White, 17cm/6.69in, 21cm/8.26in, 27.5cm/10.82in, 20mm Inlet, 20mm Outlet, 3inch Drain Holes, One-Piece Toilet, Top Push Button Valve

SEIWEI

CA$47.92

CA$50.63
(5% Off)

More Details
Main highlights
- 【Wide Application】Dual flush valve toilet replacement kit is widely used for one-piece toilet in restrooms, hotels, shopping malls, homes, supermarkets, restaurants, apartments and so on.
- 【Size】Water tank replacement accessories has 3 lengths/heights to choose from, which are 17cm/6.69in, 21cm/8.26in or 27.5cm/10.82in. Regardless of the length/height selected, the connector diameter of the control valve is 8.1cm/3.18in (excluding seal), 10.8cm/4.25in (including seal) and inlet hole diameter is universal 20mm/0.78in which is suitable for ceramic 3inch large drain holes sizes (about 8.2-9.4cm/3.22-3.70in).
- 【Installation】3 Inch ABS flush valve assembly is suitable for most one-piece toilet installation, please measure the height of the water tank, the diameter of the drain hole and the diameter of the water inlet hole before installation. You can install it with your bare hands, it is very simple and convenient. PLEASE NOTE: 1. Please refer to the picture for details about the size. 2. The control is NOT suitable for split toilet.
- 【High Quality Material】Water tank replacement accessories have high quality ABS and metal made with good hardness, the kits are durable in construction, reliable in performance and long lasting. The control valve has high flushing efficiency and strong flushing power, so you can enjoy a smoother flushing experience that can be used for a long time.
- 【Good Replacement】Dual flush valve toilet replacement kit regulates the amount of water in the tank when it is fully drained; when it is half drained, the dual flush valve assembly has a rubber seal at the bottom, therefore it has a good seal and won't leak; when the toilet tank in your home is leaking, replacing the control valve is a great time and cost saving option.
CA$47.92
CA$50.63 (5% Off)
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Kohler

Kohler GP1083167 Fill Valve for all Class 5

Kohler

CA$40.02

More Details
Main highlights
- Used on all class five toilets. Valve Type: Manual
- Red Cap
- Kohler Genuine Part
- Adjustable to correct size
CA$40.02
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Fluidmaster

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor

Fluidmaster

CA$26.59

More Details
Main highlights
- Universal fit for most toilet models and brands
- Tank and Bowl water level adjustment dials to customize the perfect flush and save. EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks
- Fix noisy, or slow filling fill valves with the quietest, most powerful toilet fill valve available
- Easy to install, step-by-step instructions included
CA$26.59
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Fluidmaster

Fluidmaster 507AKP7 Flush Valve Kit

Fluidmaster

CA$24.99

More Details
Main highlights
- Saves water and stops leaks at the drain
- Replaces any 2-inch flush valve in a two-piece toilet
- Includes bolts and gasket
- Includes adjustable flapper for efficient, powerful flushes every time
- Easy to install
CA$24.99
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Fluidmaster

Fluidmaster 400H-5003 Performax Universal Toilet Fill Valve with Tank and Bowl Water Control 2-Pack, Blue

Fluidmaster

CA$35.29

More Details
Main highlights
CA$35.29

5 Best Toilet Flush Valves of 2025

SEIWEI Toilet Flush Valve Replacement Kit, Dual Flush Valve, ABS, White, 17cm/6.69in, 21cm/8.26in, 27.5cm/10.82in, 20mm Inlet, 20mm Outlet, 3inch Drain Holes, One-Piece Toilet, Top Push Button Valve

Kohler GP1083167 Fill Valve for all Class 5

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor

Fluidmaster 507AKP7 Flush Valve Kit

Fluidmaster 400H-5003 Performax Universal Toilet Fill Valve with Tank and Bowl Water Control 2-Pack, Blue

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