Shower valve Flow Valves and Shut off Cartridges
Find the correct shower valve replacement, flow cartridge, or shut off valve to stop your dripping shower.
The flow valve (or on/off cartridge) controls the water volume and is the most common cause of leaks. We stock a massive range of shower shut off valves, ceramic disc cartridges, and compression valves for brands like Aqualisa, Mira, and Triton.
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Shower valve Flow Valves and Shut off Cartridges
Showing products 1 to 48 of 246
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£25.00 Inc. VAT
£20.83 ex. VAT
ABACUS ON/OFF CARTRIDGE FOR 1-WAY 2-HANDLE CVP CONCEALED SHOWER VALVE (ABSP-10-0016)
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£28.00 Inc. VAT
£23.33 ex. VAT
Abacus On/Off Cartridge For Concealed Shower Valve ABSP-10-0018
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£150.00 Inc. VAT
£125.00 ex. VAT
Abacus On/Off Cartridge For Concealed Shower Valve ABSP-10-0018 Short Version
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£26.00 Inc. VAT
£21.67 ex. VAT
Alpi Clockwise Close Ceramic Cartridge VT002
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£30.00 Inc. VAT
£25.00 ex. VAT
£36.00
Alpi on off Cartridge Used With Shower Clockwise Close mixer ALPI002
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£26.40 Inc. VAT
£22.00 ex. VAT
Alpi Replacement Shower Cartridge VT 015DX
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£14.25 Inc. VAT
£11.88 ex. VAT
£17.10
Aqata Flow Clockwise Close Cartridge SVR21W
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£15.00 Inc. VAT
£12.50 ex. VAT
£18.00
Aqualisa Midas ON/OFF Flow Cartridge - High Pressure EB910214
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£26.00 Inc. VAT
£21.67 ex. VAT
Bathroom Replublic Flame Shower Valve Replacement Flow Valve Clockwise Close INFINITYFLOWCW
£60.00 Inc. VAT
£50.00 ex. VAT
£81.60
Ebaths Non Concussive Exposed Control Valve 692R041
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£31.50 Inc. VAT
£26.25 ex. VAT
£45.00
Bathstore Bensham Shower Valve On/Off Cartridge SPACW0005
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£31.50 Inc. VAT
£26.25 ex. VAT
£45.00
Bathstore Blade Shower Valve On/Off Cartridge SPACW0005
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£31.50 Inc. VAT
£26.25 ex. VAT
£45.00
Bathstore Metro Post 2007 Shut Off Valve X2A071N
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£56.80 Inc. VAT
£47.33 ex. VAT
£71.00
Bathstore Metro Pre 2007 On/Off Clockwise Close Cartridge Flow 3/4 Valve AQ8083
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£59.17 Inc. VAT
£49.31 ex. VAT
Bathstore Quatra Shower Clockwise Close Valve Flow Cartridge SPACW0017
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£31.50 Inc. VAT
£26.25 ex. VAT
£45.00
Bathstore Swing Vertical Shower Valve On/Off Cartridge SPACW0005
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£38.33 Inc. VAT
£31.94 ex. VAT
Bathstore Metro Flow Control On/Off Valve CG1210FA1
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£4.17 Inc. VAT
£3.48 ex. VAT
Bathstore Metro Flow Control On/Off Valve CG1210FA2
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£150.00 Inc. VAT
£125.00 ex. VAT
Better Bathrooms Eco Style Shower On/Off Valve ABSP-10-0018 Short Version
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£12.79 Inc. VAT
£10.66 ex. VAT
£15.34
Bristan Flow Control Cartridge for Artisan Thermostatic BSM 000190000-032
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£26.63 Inc. VAT
£22.19 ex. VAT
£31.95
Bristan Prism Flow Control Clockwise Close Cartridge 00622130
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£27.00 Inc. VAT
£22.50 ex. VAT
£32.40
Bristan Replacement Flow Clockwise Close Valve For Artisan 2011 Single Flow 00650436
£0.00 Inc. VAT
£0.00 ex. VAT
£16.10
DISCONTINUED
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£28.67 Inc. VAT
£23.89 ex. VAT
£34.40
Bristan Valve Cd 3/4 Part Number: Clockwise Close VLV 04070-8-20A
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£16.67 Inc. VAT
£13.89 ex. VAT
£20.00
Burlington Bottom On/Off Clockwise Close Cartridge BUR.SP36
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£27.00 Inc. VAT
£22.50 ex. VAT
£32.40
Burlington Clockwise Close Cartridge For Eden EF1S Thermostatic Shower Valve SPABU0021
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£20.00 Inc. VAT
£16.67 ex. VAT
£24.00
Burlington F3 Top flow control cartridge for recessed shower valve V34 V36: SPABU0012
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington F8 Anti-Clockwise Close cartridge for Stour BF3S thermostatic shower valve SPABU0023
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington F8 flow control Clockwise Close cartridge for Stour BF3S thermostatic shower valve SP582
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£10.03 Inc. VAT
£8.36 ex. VAT
£12.04
Burlington Flow Anti-Clockwise Close Cartridge For Old Style Clyde Valve SP34
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£16.67 Inc. VAT
£13.89 ex. VAT
£20.00
Burlington Flow Clockwise Close Cartridge SP33
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£20.00 Inc. VAT
£16.67 ex. VAT
£24.00
Burlington flow control Anti-Clockwise Close cartridge for V25 shower valve SPABU0017
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington Flow Control Cartridge For Eden EF1S Shower Valve SP580
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£21.00 Inc. VAT
£17.50 ex. VAT
£25.20
Burlington Flow Control Cartridge TF2S, TF3S Shower Valves SP584
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£20.00 Inc. VAT
£16.67 ex. VAT
£24.00
Burlington Hent F3 Bottom flow control cartridge for recessed shower valve V36: SPABU0014
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£16.67 Inc. VAT
£13.89 ex. VAT
£20.00
Burlington Hent F6 Bottom flow control Clockwise Close cartridge for V25 shower valve SP36
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£16.80 Inc. VAT
£14.00 ex. VAT
£20.00
Burlington New Top Flow Control Cartridge For Recessed Shower Valve V34 V36: SP313
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£37.50 Inc. VAT
£31.25 ex. VAT
£45.00
Burlington Old Top flow control cartridge for recessed shower valve V34 V36: X24071N
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington Stour Hent F7 Flow Control Anti-Clockwise Close Cartridge SP581
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington Stour Hent F8 Flow Control Clockwise Close Cartridge SP582
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£20.83 Inc. VAT
£17.36 ex. VAT
£25.00
Burlington Top Flow Control Cartridge for Stour Thermostatic BF1S, BF2S, BF3S Shower Valve SP581
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£20.00 Inc. VAT
£16.67 ex. VAT
£24.00
Burlington Top Flow Control Cartridge For Stour Thermostatic BF1S, BF2S, BF3S Shower Valve SPABU0022
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£18.00 Inc. VAT
£15.00 ex. VAT
£20.00
Burlington Top On/Off Anti-Clockwise Close Cartridge BUR.SP37
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£16.67 Inc. VAT
£13.89 ex. VAT
£20.00
Burlington Trent Bottom Flow Clockwise Close Valve SP33
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£21.00 Inc. VAT
£17.50 ex. VAT
£25.20
Burlington Trent F4 Flow Control Cartridge SP584
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£30.00 Inc. VAT
£25.00 ex. VAT
£36.00
Cassellie CVT001 On/Off Anti Clockwise Close Shower Cartridge COMP007
Identify Your Shower Flow Cartridge
To find the correct shower valve replacement, you must remove the handle and inspect the cartridge inside. Visual identification is key, as many brands use similar brass valves.
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Pro Tip: Count the Splines
The "splines" are the teeth on the top stem where the handle grips. You MUST count them (e.g., 20 teeth, 24 teeth). If you get this wrong, your handle will not fit the new flow cartridge.
The "splines" are the teeth on the top stem where the handle grips. You MUST count them (e.g., 20 teeth, 24 teeth). If you get this wrong, your handle will not fit the new flow cartridge.
Shower Valve Sizing Guide
Use this table to check your dimensions. The most important measures are the overall length and the spline count.
| Valve Type | Spline Count (Common) | Thread Size |
|---|---|---|
| Ceramic Disc (1/4 Turn) | 18, 20, 24, or 32 Splines | 1/2" or 3/4" BSP |
| Compression (Wind Down) | Usually Square or 20 Splines | Standard 1/2" BSP |
| Push Button (Diverter) | N/A (Push fit) | Various |
Types of Shut Off Valves
Ceramic Disc (Quarter Turn)
The most common modern shower on off valve. It opens fully with just a 90-degree turn of the handle. If it drips, the ceramic discs inside are worn.
Compression (Washer)
Found in older showers. You have to wind the handle multiple times to open it. These use rubber washers which can perish over time.
Diverter Cartridges
Complex valves that switch water between outlets (e.g., overhead head vs. handset). These are longer and more specific to the brand.
Shower Valve Replacement FAQs
Why is my shower dripping?
A dripping shower is almost always caused by the flow cartridge (the on/off valve) letting water pass, not the thermostat. Replacing the flow cartridge usually solves the drip instantly.
Are universal shower flow cartridges available?
Rarely. While many look similar, the spline count and length vary. It is safer to match the visual design and measurements exactly rather than assuming a "universal" fit.
What is the difference between On/Off and Thermostatic?
The thermostatic cartridge controls the temperature (Hot/Cold). The flow valve controls the volume and turns the water On/Off. If you have a drip, you need the flow valve. If the water is cold, you need the thermostat.
How do I remove the old shower valve?
First, isolate the water supply. Remove the handle (look for a grub screw). Use a box spanner or adjustable wrench to unscrew the old valve counter-clockwise.