Aqualisa has been a trusted name in UK bathrooms for decades, earning its reputation through reliable thermostatic controls and solid engineering. If you own an older Aqualisa shower, you already know the brand delivers. What you might not know is exactly what each individual component does, or what it’s called when something needs replacing.
That’s a common situation. A seal wears out, a bracket cracks, or the hose starts to leak at one end. You know something is off, but pinpointing the exact part, especially on an older model, can feel like guesswork. Replacement parts for legacy Aqualisa showers are still widely available, which is great news. The catch is knowing precisely which piece you need.
That’s where a clear parts diagram becomes your best friend. Below, we’ll walk through every component shown in the official Aqualisa exploded parts diagram so you can identify, understand, and confidently source whatever your shower needs to get back to peak performance.
Aqualisa Shower Parts Diagram & Details
The diagram displays a fully exploded view of an older-model Aqualisa shower system, with each individual component separated and clearly numbered from 1 through 8. All parts are rendered in the brand’s signature white finish, laid out against a clean background so that every piece is easy to distinguish. You can see the shower handset, wall-mounted fittings, flexible hose, control knobs, and the fixed shower head, each pulled apart from its assembled position to show how they relate to one another.
What makes this kind of exploded diagram so useful is that it mirrors the actual order of assembly. Starting from the wall outlet and working outward to the handset in your grip, each numbered part follows a logical flow. Whether you’re troubleshooting a drip or doing a full replacement, identifying the right component below will save you time and money.
1. Shower Handset
The shower handset is the part you hold in your hand every time you step under the water. In this older Aqualisa design, it features a smoothly contoured body with an ergonomic grip that sits comfortably in your palm, even when wet and soapy. The front face houses the spray plate, which distributes water evenly across the shower pattern.
Over years of daily use, the internal components of the handset can accumulate limescale, especially in hard water areas. You’ll notice this when the spray pattern becomes uneven or certain nozzles stop flowing altogether. Soaking the spray plate in a mild descaling solution can help, but if the casing itself has cracked or the internal valve has worn out, a full handset replacement is the practical move.
On many older Aqualisa models, the handset connects to the hose with a standard half-inch fitting. That means sourcing a direct replacement is usually straightforward, even if your exact model has been discontinued. Just match the connection size and the overall length to keep things compatible.
2. Wall Bracket (Shower Cradle)
Sitting just below the handset in the diagram, the wall bracket, sometimes called the shower cradle, is the component that holds the handset against the wall when you’re not using it in your hand. It’s a small, clip-style mount that attaches to a vertical riser rail or directly to the wall via screws and wall plugs.
Despite its small size, this is one of the parts that wears out surprisingly often. The clip mechanism that grips the handset can become loose over time, and once it does, your shower head starts slipping down mid-shower. Replacing the bracket is a quick fix that doesn’t require any plumbing knowledge. You simply unscrew the old one, line up the new bracket, and secure it in place.
3. Flow Control Knob
The flow control knob is one of the smaller components in the diagram, but it plays a big role in your daily shower experience. This is the piece you turn or press to adjust how much water flows through the system. On older Aqualisa showers, the knob typically has a smooth, rounded profile that matches the rest of the unit’s design.
What sits beneath the visible knob is a valve cartridge that opens and closes to regulate water volume. If you find that your shower’s flow has weakened noticeably, or the knob feels stiff and gritty when you turn it, the issue might be mineral buildup inside the cartridge rather than the knob itself. Still, the exterior knob can crack or lose its grip on the valve spindle over time, making it worth checking as a standalone part.
4. Temperature Control Knob and Shroud
Paired near the flow control in the diagram, the temperature control knob and its surrounding shroud give you command over how hot or cold your water runs. Aqualisa’s thermostatic models were built with a built-in safety stop, usually at 38°C, to prevent scalding. The shroud, which is the decorative cover surrounding the knob, hides the valve body and mounting hardware behind it.
If you’ve noticed that your shower runs hotter or colder than the setting suggests, the thermostatic cartridge behind this knob might need attention. But before pulling out the cartridge, check the knob itself. A worn or cracked knob may not be engaging the valve spindle properly, giving you inaccurate temperature response. The shroud, meanwhile, can yellow or become brittle with age, making it a common cosmetic replacement on older installations.
Because these parts are exposed to steam and heat cycles every single day, plastic degradation is expected over a long enough timeline. Swapping out the knob and shroud together keeps the look consistent and ensures a snug, rattle-free fit around the valve body.
5. Shower Hose
The shower hose is the long, flexible tube running through the centre of the diagram, connecting the wall outlet to the handset. Older Aqualisa hoses typically feature a reinforced PVC or rubber core wrapped in a smooth, white outer casing that matches the rest of the shower’s aesthetic.
Hoses endure a lot of physical stress. Every time you move the handset around your body, stretch it to rinse the shower tray, or let it hang and twist under its own weight, the internal bore flexes and rotates. Over time, this causes kinks, micro-cracks, and eventually leaks at either the handset connection or the wall outlet connection. A slow drip from the hose coupling is one of the most frequent reasons people start searching for Aqualisa replacement parts.
Replacing the hose is one of the simplest repairs you can do. The fittings at each end are typically hand-tightened cone connectors, so you don’t need any tools beyond a pair of pliers for a final snug quarter-turn. Just make sure the new hose matches the length and diameter of your original to keep water pressure consistent.
6. Wall Elbow (Outlet)
The wall elbow, also referred to as the wall outlet, is the angled fitting that protrudes from your bathroom wall and serves as the water supply point for the shower hose. In the diagram, it’s the L-shaped component on the lower left, and its job is simple but critical: it redirects the water supply from the concealed pipework inside the wall to the exposed hose hanging in your shower space.
Because this fitting sits at a transition point between hidden plumbing and visible hardware, it needs to form a watertight seal on both ends. The back end connects to a threaded pipe stub inside the wall, while the front end accepts the shower hose’s cone connector. Leaks at the wall elbow usually trace back to a degraded rubber washer inside the hose connection, or to old PTFE tape on the threaded pipe joint behind the wall.
7. Wall Flange (Cover Plate)
Right next to the wall elbow in the diagram, you’ll spot the wall flange, which is the circular cover plate that sits flush against the wall surface. Its purpose is purely cosmetic but no less important. It hides the hole cut through the tile or wall panel where the pipework exits, giving the installation a clean, finished look.
Without a wall flange, you’d see raw tile edges, silicone sealant, and possibly the pipe thread, none of which belongs in a polished bathroom. Over the years, the flange can crack, discolour, or lose its snug fit against the wall if the underlying sealant dries out. Replacing it costs very little and makes a noticeable difference in how tidy your shower area looks.
Most Aqualisa flanges simply slide over the wall elbow and press against the tiled surface. Some models have a small grub screw for a more secure hold, so it’s worth checking your specific setup before ordering.
8. Fixed Shower Head
The fixed shower head, shown at the top left of the diagram, is the overhead alternative to the handheld handset. On older Aqualisa setups that include both options, this head mounts to a wall-mounted arm or a ceiling drop, delivering a rain-style spray pattern that covers a wider area than the handset.
What gives a fixed head its distinctive feel is the larger spray face. With more nozzle holes spread over a bigger surface, the water disperses into a softer, broader cascade rather than a focused jet. That said, the same limescale issues that affect the handset can clog a fixed head too, and the effects are often more noticeable because you can’t angle it around in your hand to compensate for blocked nozzles.
If your fixed head has developed persistent dead spots that descaling can’t fix, or if the swivel joint where it meets the arm has become stiff or leaky, a replacement head will restore that satisfying overhead drench. Matching the thread size to your existing arm is key, and most Aqualisa fixed heads use a standard half-inch BSP fitting that’s easy to confirm before purchasing.
