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Fluidmaster

Fluidmaster is a trusted leader in toilet repair technology, best known for dependable fill valves, floats, and tank repair components. Their solutions are designed to quickly restore performance, stop leaks, and improve efficiency in everyday toilet systems.
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17 products

White Fluidmaster toilet bowl cleaning system with two cartridge dispensers and red accent band.

Fluidmaster Flush 'n Sparkle 8300 Automatic Toilet Bowl Cleaning System with Bleach Cartridge - 8300P8

SKU #: FLU8300   |   MPN #: 8300P8
$26.80
$26.80 $0.00
MSRP: $28.43

Available in stock

Gray and black toilet fill valve assembly with cylindrical inlet and black lever arm mechanism.

Fluidmaster Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets - 703AP4

SKU #: FLU703AP4   |   MPN #: 703AP4
$23.46
$23.46 $0.00
MSRP: $23.81

Available in stock

Red toilet flapper with two adjustable arms, metal chain, and mounting ball, shown against white background.

Fluidmaster PerforMAX Adjustable 2 inch Toilet Flapper - 502P21

SKU #: FLU502P21   |   MPN #: 502P21
$12.76
$12.76 $0.00
MSRP: $12.76

Available in stock

Three yellow rubber seals arranged in a row, overlapping at the edges.

Fluidmaster PROS3KP15 Replacement Flush Valve Seals (3-pack) - PROS3KP15

SKU #: FLUPROS3KP15   |   MPN #: PROS3KP15
$15.80
$15.80 $0.00
MSRP: $15.80

Available in stock

Fluidmaster Pro Series PRO45K complete toilet tank kit with fill valve, flapper, and hardware components.

FLUIDMASTER COMPLETE KIT FOR TOILET TANK

SKU #: FLUPRO45K   |   MPN #: PRO45K
$38.69
$38.69 $40.73
MSRP: $45

Available in stock

Three Fluidmaster 400A toilet fill valves with black caps and metal stems displayed on packaging box.

FLUIDMASTER 400A CONTRACTOR 3PACK FILL VALVE

SKU #: FLU400ACN3   |   MPN #: 400ACN3P5
$47.29
$47.29 $0.00
MSRP: $51.52

Available in stock

Red rubber gasket with metal rim and black mounting hardware components displayed on white background.

Fluidmaster Pro Series PRO6100G-059 2 inch Tank-to-Bowl Universal Gasket - PRO6100G-059

SKU #: FLUPRO6100G059   |   MPN #: PRO6100G-059
$22.50
$22.50 $0.00
MSRP: $22.50

Available in stock

Fluidmaster universal flush valve with 3-inch flapper kit in red and black packaging.

3 UNIVERSAL FLUSH VALVE REPLACES FLUSH VALVES

SKU #: FLU540AKRP5   |   MPN #: 540AKRP5
$30.15
$30.15 $0.00
MSRP: $30.15

Available in stock

White and blue toilet fill valve assembly with riser tube and blue float lever mechanism.

Fluidmaster PRO747K Fill Valve with Riser for Kohler Toilets - PRO747K

SKU #: FLUPRO747K   |   MPN #: PRO747K
$34.11
$34.11 $0.00
MSRP: $35.64

Available in stock

Two white Fluidmaster Flush 'n Sparkle toilet bowl cleaning refill cartridges in original packaging.

Fluidmaster Flush 'n Sparkle 8302 Toilet Bowl Cleaning Refills - White (2-pack) - 8302P8

SKU #: FLU8302P8   |   MPN #: 8302P8
$20.78
$20.78 $0.00
MSRP: $21.34

Available in stock

Two blue cylindrical toilet bowl cleaning refills with black grip strips and dome caps.

Fluidmaster Flush 'n Sparkle 8102 Toilet Bowl Cleaning Refills - Blue (2-pack) - 8102P8

SKU #: FLU8102   |   MPN #: 8102P8
$16.55
$16.55 $0.00
MSRP: $16.55

Available in stock

Fluidmaster PRO57K 2" flush valve kit with black stem, red cap, gaskets, and brass components on tan packaging.

FLUIDMASTER PRO57K 2"COMPLETE FLUSH VALVE KIT

SKU #: FLUPRO57K   |   MPN #: PRO57K
$23.76
$23.76 $0.00
MSRP: $23.76

Available in stock

Black and red toilet fill valve with adjustable float arm and inlet tube for water control.

Fluidmaster Pro Series PRO45H Toilet Fill Valve with Bowl Water Control - PRO45H-004-P10

SKU #: FLUPRO45H   |   MPN #: PRO45H-004-P10
$28.37
$28.37 $0.00
MSRP: $28.37

Available in stock

Fluidmaster Pro Series toilet fill valve with red cap, black body, and brass shank connector at base.

Fluidmaster Pro Series PRO45B Toilet Fill Valve with Brass Shank - PRO45B

SKU #: FLUPRO45B   |   MPN #: PRO45B
$31.85
$31.85 $0.00
MSRP: $31.85

Available in stock

White toilet bowl cleaning dispenser with blue cartridge refill containing cleaning tablets.

Fluidmaster Flush 'n Sparkle 8100 Automatic Toilet Bowl Cleaning System - 8100P8

SKU #: FLU8100   |   MPN #: 8100P8
$34.69
$34.69 $0.00
MSRP: $34.69

Available in stock

Two green toilet bowl cleaning refill cartridges with black cleaning tablets and red metal clips.

Fluidmaster Flush 'n Sparkle 8202 Toilet Bowl Cleaning Refills - Green (2-pack) - 8202P8

SKU #: FLU8202   |   MPN #: 8202P8
$20.42
$20.42 $0.00
MSRP: $20.42

Available in stock

Fluidmaster PRO45 Fill Valve

Fluidmaster PRO45 Fill Valve

SKU #: FLUPRO45   |   MPN #: PRO45
From $22.71
From $22.71 $0.00
MSRP: $22.71

Available in stock

Fluidmaster FAQ

What makes Fluidmaster different from other toilet parts brands?

Fluidmaster is known for reliable, easy-to-install toilet repair parts that quickly fix common issues like running or slow-filling toilets.

What is a Fluidmaster fill valve?

A Fluidmaster fill valve controls how water refills the tank, making it a key part of toilet fill valve replacement and repair.

How do I fix a running toilet with Fluidmaster parts?

Most running toilets can be fixed by replacing the fill valve, flapper, or float, all of which Fluidmaster offers.

Are Fluidmaster toilet parts easy to install?

Yes, Fluidmaster products are designed for quick DIY installation, often without the need for professional tools.

What is a toilet float and why does it matter?

The toilet float works with the fill valve to control water levels and prevent overflow or constant running.

Does Fluidmaster help improve water efficiency?

Yes, many Fluidmaster products are designed to reduce water waste and improve flushing efficiency.
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