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    AI Overview
    Fluidmaster 400A Universal Toilet Fill Valve 400ARP25 - The ...
    A needle valve-type toilet fill valve, or diaphragm-type valve, uses a small, moving rod (stem) and a diaphragm seal to regulate water pressure and flow. When the float lowers, the stem lifts to release pressure above the seal, allowing water to flow. When full, the stem drops, building pressure to close the seal. 
    Key Features and Common Types 
    • Mechanism: Uses a rod, rubber diaphragm, or seal to manage flow rather than a simple stopper.
    • Types: Popular models include the FluidMaster 400A, which is widely considered a standard, efficient, and fast-filling option.
    • Function: Modern, quiet-operating, and designed for efficient, low-flow toilets.
    • Components: Frequently includes a float cup, refill tube, and shank washer for easy, universal installation. 
    Replacement and Installation Tips 
    • Installation: Replace by matching the model number on the existing cap.
    • Procedure: Turn off the water, unscrew the supply line and the locking nut under the tank, then remove the old valve.
    • Compatibility: Most, like the LASCO 04-4104, are adjustable from 6 to 12 inches for 2-piece toilets. 
    Popular Replacement Options 
    • Fluidmaster 400A: Known for being fast and reliable.
    • Fluidmaster Pro 45: Identified as a quieter, durable option.
    • Korky: Considered a reliable, often recommended alternative. 
    Ensure the replacement is "anti-siphon" compliant and fits your tank height. 
    • How Does a Toilet Fill Valve REALLY Work? Mind-Blowing ...
      Oct 1, 2024 — hi today I'm going to show you how this toilet fill valve works now obviously when the float goes down the valve comes on when the...
      7m
      YouTube·Morgan Inspection Services
    • Any particular brand of toilet fill valve that's better than others?
      Mar 5, 2025 — Korky Fill Valves: Korky fill valves are recommended by some users, with one stating they are the best and others are junk. Anothe...
      Reddit
    • Best Toilet Fill Valve
      Jan 3, 2026 — then once the flapper closes I'll time each one to see how long they take to fill the tank. now I'll also check how quiet each one...
      6m
      YouTube·The Woggers Way DIY
    • A Step-by-Step Guide to Replacing Your Toilet Fill Valve | The ...
      Jan 14, 2026 — hand. exactly it's a little bit of a wet. job don't freak out just part of doing the job. there's our valve i'm throw it all in th...
      2m
      YouTube·George To The Rescue
    • 6 Different Toilet Flush Valve Types and How to Choose the Right One
      Nov 10, 2025 — Other types of toilet valves include: * **Fill valve** Also known as the ballcock, this valve controls the water flow of the holdi...
      The Spruce
    • Toilet Fill Valves: What You Need To Know About It In 2026?
      Mar 15, 2026 — Float Cup Fill Valves * More compact design with a cylindrical float cup that slides up the valve shaft. * Quieter operation and e...
      tcs-ma.com
    • LASCO 04-4104 Fill Valve Magnus Plastic Low Profile, Anti-Syphon, ...
      Product Description ... LASCO 04-4104 fill valve magnus plastic low profile, anti-syphon, adjustable 6-Inch-12-Inch with refill tu...
      Amazon.com
    • How Does a Toilet Fill Valve REALLY Work? Mind-Blowing ...
      Oct 1, 2024 — hi today I'm going to show you how this toilet fill valve works now obviously when the float goes down the valve comes on when the...
      7m
      YouTube·Morgan Inspection Services
    • Any particular brand of toilet fill valve that's better than others?
      Mar 5, 2025 — Korky Fill Valves: Korky fill valves are recommended by some users, with one stating they are the best and others are junk. Anothe...
      Reddit
    • Best Toilet Fill Valve
      Jan 3, 2026 — then once the flapper closes I'll time each one to see how long they take to fill the tank. now I'll also check how quiet each one...
      6m
      YouTube·The Woggers Way DIY
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    Videos
    A Step-by-Step Guide to Replacing Your Toilet Fill Valve | The ...
    YouTube · George To The Rescue
    Jan 14, 2026
    YouTube · George To The Rescue
    4:12
    Shut off water, flush toilet, remove old valve by loosening the plastic nut, install new valve, reconnect water line & turn on water.
    George To The Rescue
    YouTube·
    Jan 15, 2026

    A Step-by-Step Guide to Replacing Your Toilet Fill Valve | The ...

    YouTube·George To The Rescue·Jan 15, 2026
    YouTube
    In this video
    • 00:00
      Identifying slow filling and fill valve issues
    • 00:09
      Opening the tank and explaining the problem
    • 00:30
      Shutting off the toilet water supply
    • 00:37
      Draining the remaining water from the tank
    • 00:46
      Loosening and removing the old fill valve
    • 01:34
      Matching the new fill valve to the original
    • 01:44
      Installing the new fill valve and gasket
    • 02:24
      Hand tightening the valve securely
    • 02:36
      Explaining the flow restrictor and water pressure
    • 02:57
      Installing the refill hose and retaining clip
    • 03:20
      Connecting the water supply line
    • 03:48
      Turning the water back on and testing
    • 03:56
      Verifying correct water flow and final results
    How to Replace a Toilet Fill Valve Fluidmaster Detailed Step ...
    YouTube · Father and Son Fix
    Feb 28, 2026
    YouTube · Father and Son Fix
    11:51
    Turn off the water, flush the toilet, and disconnect the water line before replacing the old fill valve with a new Fluidmaster.
    Father and Son Fix
    YouTube·
    Feb 28, 2026

    How to Replace a Toilet Fill Valve Fluidmaster Detailed Step ...

    YouTube·Father and Son Fix·Feb 28, 2026
    YouTube
    Best Toilet Fill Valve
    YouTube · The Woggers Way DIY
    Jan 3, 2026
    YouTube · The Woggers Way DIY
    8:25
    The FluidMaster 400A is the fastest at 33.28 seconds, while the Pro 45 is the quietest at 59-62 dB.
    The Woggers Way DIY
    YouTube·
    Jan 3, 2026

    Best Toilet Fill Valve

    YouTube·The Woggers Way DIY·Jan 3, 2026
    YouTube
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    In stores nearby
    Fluidmaster PRO45 Fill Valve.
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    KOHLER Fill Valve Assembly 1068031.0.
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    Lasco 3/8-Inch Compression x 3/8-Inch Straight Brass Needle Valve.
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    Popular products
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      Free delivery by Mon
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      Pickup, 10 mi
      Fluidmaster PRO45 Fill Valve
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    • Fluidmaster Performax Universal Toilet Fill Valve 400H-002.
      Nearby, 9 mi
      Fluidmaster Performax Universal Toilet Fill Valve 400H-002
      $15.13
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      Same-day delivery $11
      4.6(5.4K)
      Nearby, 9 mi
      Fluidmaster Performax Universal Toilet Fill Valve 400H-002
      $15.13
      Lowe's       & more
      Same-day delivery $11
      4.6(5.4K)
      Easy to install (2,881 user reviews)
    • AMERICAN STANDARD Universal Fill Valve 7381125-400.0070A.
      Pickup, 10 mi
      AMERICAN STANDARD Universal Fill Valve 7381125-400.0070A
      $24.99
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      Free delivery
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      Pickup, 10 mi
      AMERICAN STANDARD Universal Fill Valve 7381125-400.0070A
      $24.99
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    • Fluidmaster 400a Toilet Fill Valve.
      Nearby, 12 mi
      Fluidmaster 400a Toilet Fill Valve
      $9.97
      Walmart       & more
      4.6(12K)
      Nearby, 12 mi
      Fluidmaster 400a Toilet Fill Valve
      $9.97
      Walmart       & more
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      Easy to install (5,389 user reviews)
    • KORKY QUIETFILL FILL VALVE 528.
      Nearby, 9 mi
      KORKY QUIETFILL FILL VALVE 528
      $9.98
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      4.3(3.3K)
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      KORKY QUIETFILL FILL VALVE 528
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      4.3(3.3K)
      Fills the tank up super fast · Easy to setup and install
      The Home Depot
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    • Fluidmaster 400A Universal Toilet Fill Valve.
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    • DANCO COMPANY HydroClean Universal Fill Valve HC630T.
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      Fluidmaster Flapperless Toilet Fill Valve 703AP4
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    • Kohler Fill Valve Kit GP1138930.
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    • Plumb Craft Adjustable Anti-Siphon Fill Valve.
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    • 18% OFF
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    Web results

    Old Flush Toilet Tank Fittings Inlet Valve Adjustable Needle ...


    Amazon.com
    https://www.amazon.com › Bloepum-Toilet-Fittings-Ad...
    Amazon.com
    https://www.amazon.com › Bloepum-Toilet-Fittings-Ad...
    High-Quality Replacement: Upgrade your bathroom with our Old flush toilet tank fittings inlet valve, designed for optimal performance and durability.Read more
    Discussions and forums
    Does anyone know what type of fill valve this is?
    Reddit · 
    r/toilet
     · 5 comments
     · 2 years ago
    Does anyone know what type of fill valve this is?
    Reddit · 
    r/toilet
     · 5 comments
     · 2 years ago
    Simply replace the complete fill valve, (the thin refill hose is supposed to be inserted ...  More
    2 years ago
    Float valve. The new ones are much better design.  More
    2 years ago
    Recommendations For A Replacement Fill Valve
    Plumbing Forums · 
    3 years ago
    Recommendations For A Replacement Fill Valve
    Plumbing Forums · 
    3 years ago
    The Fill Valve on one of my toilets just started refilling very slowly. The valve is 10+ years old. Instead of playing around trying to ...  More
    See more
    People also ask
    What are the different types of toilet refill valves?
    An error has occurred. Please try again later.
    Do all toilet fill valves fit all toilets?
    An error has occurred. Please try again later.

    Ask anything in AI Mode

    Explain the different types of fill valves
    Describe how to install a universal fill valve
    List common brands of fill valves
    How much will a plumber charge to replace a fill valve?
    The average toilet fill valve replacement cost is $60 to $150 (CAD 83 to CAD 208), with most homeowners paying approximately $125 (CAD 173). However, it's important to note that these are average costs, and your plumber may charge more or less based on their own parts and labor rates.Dec 7, 2025

    How Much Does It Cost to Fix a Toilet Fill Valve - HomeServe


    HomeServe
    https://www.homeserve.com › en-us › blog › cost-guide
    HomeServe
    https://www.homeserve.com › en-us › blog › cost-guide
    What are the different types of toilet cistern valves?
    An error has occurred. Please try again later.

    Web results

    Toilet Fill Valve


    Fluidmaster
    https://fluidmaster.com › toilet › part-type › toilet-fill-v...
    Fluidmaster
    https://fluidmaster.com › toilet › part-type › toilet-fill-v...
    Toilet fill valves refill the toilet tank and bowl to the correct water levels after flushing. Fluidmaster invented the fill valve technology in 1957 and is ...Read more

    Any particular brand of toilet fill valve that's better than ...


    Reddit · r/askaplumber
    30+ comments · 1 year ago
    Reddit · r/askaplumber
    30+ comments · 1 year ago
    I prefer these types of fill valves. They close quickly, but not too quickly. https://www.homedepot.com/p/Fluidmaster-400A-Universal-Toilet ...Read more
    30 answers  ·  Top answer: Fluid Master is my normal go to.
    Missing: needle ‎| Show results with: needle

    Toilet Fill Valve (How To Replace)


    YouTube · Father Son DIY Garage
    37.6K+ views · 7 months ago
    YouTube · Father Son DIY Garage
    37.6K+ views · 7 months ago
    8:32
    In this video we show how to replace an old toilet fill valve with a new universal fill valve. This is an easy plumbing repair that anyone ...
    Missing: needle ‎type
    Father Son DIY Garage
    YouTube·
    Sep 7, 2025

    Toilet Fill Valve (How To Replace)

    YouTube·Father Son DIY Garage·Sep 7, 2025
    YouTube

    Toilet Fill Valve


    Xiamen Jielin Plumbing Co.,Ltd.
    https://www.jlplumbing.com › toilet-fill-valve
    Xiamen Jielin Plumbing Co.,Ltd.
    https://www.jlplumbing.com › toilet-fill-valve
    This needle valve type toilet fill valve is compatible with most toilets and features an adjustable height design to fit various cisterns. It offers quickly ...Read more

    What is this spiral-shaped device from my toilet supply line?


    Home Improvement Stack Exchange
    https://diy.stackexchange.com › questions › what-is-this...
    Home Improvement Stack Exchange
    https://diy.stackexchange.com › questions › what-is-this...
    Sep 29, 2019 — Looks like a fill valve regulator. Fill Valve Regulator. Pretty sure the metal washer is at the top when you put it in.Read more
    7 answers  ·  Top answer: This appears to do a few things. A backflow preventer. Note the nub on the "top", that ...

    6 Different Toilet Flush Valve Types and How to Choose


    The Spruce
    https://www.thespruce.com › ... › Toilets
    The Spruce
    https://www.thespruce.com › ... › Toilets
    Nov 10, 2025 — Toilet flush valves manage water flow from a toilet tank to the bowl. Despite variations in design, their function is universally the same.Read more
    6 topics include:
    Dual-Flush Valve
    ⋅ Tower Flush Valve
    ⋅ Flapper-Style Flush Valve
    ⋅ View full list
    Missing: needle ‎| Show results with: needle
    Images
    Fluidmaster 3-in Universal Adjustable Toilet Fill Valve
    Fluidmaster 3-in Universal Adjustable Toilet Fill Valve
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