Shower 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 Flow Valves and Shut off Cartridges
Showing products 193 to 240 of 244
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£33.76 Inc. VAT
£28.13 ex. VAT
Tavistock Quantum Diverter On/Off Cartridge SP13855
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£25.00 Inc. VAT
£20.83 ex. VAT
Tavistock Varsity Bath & Basin Clockwise Close Valve SP15615
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£21.96 Inc. VAT
£18.30 ex. VAT
Tavistock Varsity Bath & Basin Valve SP15614
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£19.53 Inc. VAT
£16.28 ex. VAT
Torrent T2 On/Off Cartridge TORBCO
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£36.00 Inc. VAT
£30.00 ex. VAT
TRCV02 On/Off Anti Clockwise Close Shower Cartridge - TC101
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£16.00 Inc. VAT
£13.33 ex. VAT
£19.20
TRCV02 Cartridge Cover DCTC1004
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£30.00 Inc. VAT
£25.00 ex. VAT
£36.00
TRCV02 On/Off Clockwise Close Shower Cartridge TC102
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£18.00 Inc. VAT
£15.00 ex. VAT
£21.60
TRCV02 Replacement Outer Extension Spindle DCTC1002
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£20.13 Inc. VAT
£16.78 ex. VAT
£24.15
Trevi Boost 3/4 Inch I-S Rubber Valve Complete With Screw A951645NU11
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£15.93 Inc. VAT
£13.28 ex. VAT
The Triton 83316180 diverter control assembly is a shower spare part that fixes a stiff selector, weak outlet switching, or water diverting to the wrong function, helping you avoid poor control and unnecessary full unit replacement.
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£29.50 Inc. VAT
£24.58 ex. VAT
£35.40
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£20.91 Inc. VAT
£17.43 ex. VAT
Ultra Replacement Diverter Anti-Clockwise Close Valve SVR22W
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£40.16 Inc. VAT
£33.47 ex. VAT
Vado Korvera Tablet Flow Clockwise Close Cartridge TAB-002A-3/4
£37.65 Inc. VAT
£31.38 ex. VAT
£45.18
Vado 1/2" Ceramic Cold Valve HUB-002B-1/2
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£24.00 Inc. VAT
£20.00 ex. VAT
£33.99
Vado 1/2" Shower Flow Valve VEL-002B-C/P
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado 3/4 CD Valve Right Turn Close (Clockwise) C-301-RTC
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£21.60 Inc. VAT
£18.00 ex. VAT
£26.00
Vado 3/4" Ceramic Clockwise Close Valve CEL-002A/B-3/4 VALVE
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£27.00 Inc. VAT
£22.50 ex. VAT
£40.00
Vado 3/4" Ceramic Clockwise Close Valve HUB-002B-3/4
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£40.16 Inc. VAT
£33.47 ex. VAT
Vado Altitude Tablet Flow Clockwise Close Cartridge TAB-002A-3/4
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado Celsuis Flow Cartridge Clockwise Close C-301-RTC
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado Element Series Flow Clockwise Close Cartridge C-301-RTC
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£31.38 Inc. VAT
£26.15 ex. VAT
£37.65
Vado Flow On Off Cartridge C-203-RTC
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado Life Flow Clockwise Close Cartridge C-301-RTC
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado Mix 3/4 CD Valve Clockwise Close C-301-RTC
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£28.33 Inc. VAT
£23.61 ex. VAT
£40.00
Vado Phase Flow Clockwise Close Cartridge C-301-RTC
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£40.16 Inc. VAT
£33.47 ex. VAT
ado Tablet Flow Clockwise Close Cartridge TAB-002A-3/4
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£27.00 Inc. VAT
£22.50 ex. VAT
£40.00
Vado Westbury 3/4" Ceramic Clockwise Close Valve HUB-002B-3/4
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£21.60 Inc. VAT
£18.00 ex. VAT
£32.00
Vado Zoo Shower 1/2" Ceramic Cold Valve CEL-002B-1/2 VALVE
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£14.52 Inc. VAT
£12.10 ex. VAT
£35.00
Victoria Plumb Cubik Replacement On/Off Clockwise Close Cartridge SVR21W
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£25.00 Inc. VAT
£20.83 ex. VAT
Victorian Plumbing Milan On/Off Cartridge EG-LY-17A/ONOFF
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£24.00 Inc. VAT
£20.00 ex. VAT
Victorian Plumbing On/Off Cartridge For Square Valve LE-OFC-04
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch Cult Valve Replacement Cartridge 9015050390090
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch Le Fleur Shower Valve Replacement Cartridge 9015050380090
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch Subway Valve Replacement Cartridge 9015050380090
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£63.90 Inc. VAT
£53.25 ex. VAT
£82.80
Villeroy & Boch xControl Ceramic Head Part Anti-Clockwise Closing 9090031520090
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£58.70 Inc. VAT
£48.92 ex. VAT
£70.44
Villeroy & Boch Circle Single lever Shower/Bath Mixer Cartridge 09.15.05.062.90
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch Domicil Valve Replacement Cartridge 9015050380090
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£58.70 Inc. VAT
£48.92 ex. VAT
£70.44
Villeroy & Boch Hype dot Single lever Shower/Bath Mixer Cartridge 09.15.05.062.90
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£142.20 Inc. VAT
£118.50 ex. VAT
£200.16
Villeroy & Boch Hype Single lever Shower Mixer replacement cartridge 9015050500190
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£58.70 Inc. VAT
£48.92 ex. VAT
£70.44
Villeroy & Boch Just Single lever Shower/Bath Mixer Cartridge 09.15.05.062.90
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch Cult Valve Replacement Cartridge 9015050380090
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£58.70 Inc. VAT
£48.92 ex. VAT
£70.44
Villeroy & Boch L'Aura Single lever Shower/Bath Mixer Cartridge 09.15.05.062.90
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£42.20 Inc. VAT
£35.17 ex. VAT
Villeroy & Boch L'Aura Valve Replacement Cartridge 9015050380090
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£58.70 Inc. VAT
£48.92 ex. VAT
£70.44
Villeroy & Boch Soul Single lever Shower/Bath Mixer Cartridge 09.15.05.062.90
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.