What are the main parts of a shower?
Every mixer shower is made up of a few key components working together, and our range covers each one, from complete shower kits and slide rail kits to individual valves, heads, arms, handsets, hoses, outlets, tray wastes, tray plinths and pumps. The shower valve mixes hot and cold water and controls the temperature and flow. From the valve, water travels to one or more outlets: a fixed shower head on an arm, a handset on a flexible hose, or both. A slide rail holds the handset at an adjustable height, and a wall outlet connects the hose to the pipework behind the tiles. In a level-access or tray-based shower, a tray waste carries the water away. Understanding how these parts fit together makes it much easier to replace a worn part, upgrade your shower or plan a new one from scratch.
Which shower components do you need?
Shower kits
A shower kit brings matching parts together in one set, such as a head and arm, a riser rail with a handset, or a complete head and riser kit to pair with a concealed valve. Buying a kit is the simplest way to make sure every part fits and shares the same finish.
Shower valves
The valve is the heart of the shower. Concealed valves are built into the wall with only the control plate on show, while exposed valves sit on the surface and are quicker to fit. Valves are described by their controls and outlets: a twin valve usually runs one outlet, while a triple valve runs two, so you can switch between an overhead head and a handset. Browse our shower valves to find the right one for your setup.
Shower heads and arms
A fixed overhead head gives a soft, even rainfall spray. It is mounted on a shower arm, which comes out from either the wall or the ceiling. Wall arms are the most common, while ceiling arms drop the head straight down for a true rainfall effect. Choose an arm long enough to position the head comfortably over the centre of the shower area. See our shower heads for round and square designs.
Handsets, hoses and slide rails
A handset on a hose makes it easy to rinse hair, clean the shower area and wash children or pets. It sits on a slide rail, which lets each user set the height that suits them, or on a fixed wall bracket. Hoses wear over time and can split or kink, so replacing the hose is one of the quickest and cheapest ways to refresh a shower. Smooth, flexible hoses resist tangling and are easy to wipe clean.
Shower pumps
Some showers need help with water pressure or drainage. A shower booster pump increases weak flow on a gravity-fed system, while a shower waste pump removes water from a shower that is too low to drain by gravity, such as in a basement. See our shower pumps to find the right type.
Wall outlets, tray wastes and plinths
Smaller components keep the shower working properly. A wall outlet connects the hose neatly to the pipe in the wall. A shower tray waste drains the tray and includes a trap to stop smells. Tray plinths raise and frame a shower tray where the waste needs extra space underneath.
How to match shower components to your shower
The most important rule is to match the finish. Components are available in a range of finishes, and as a guide, chrome, matt black, brushed brass and gunmetal are among the most popular. Using the same finish for the valve, head, arm, handset and hose gives a neat, consistent look. Finishes can vary slightly between ranges, so choosing parts from the same collection gives the best match.
Next, match the shape. Round heads and handles suit round valves, and square heads and arms suit square valves. Finally, check the connections. Most shower hoses, handsets and heads use standard fittings, but valves, arms and some designer components are made to work within their own range, so check compatibility on the product page before mixing brands. Each product page lists the full specification.
When should you replace shower parts?
Some parts wear out faster than others. Replace the hose if it leaks at the joints, has split or kinks easily. Replace the shower head or handset if limescale has blocked the nozzles and cleaning no longer restores the spray. Weak flow, dripping or temperature changes can point to a worn valve cartridge or a problem with the water supply. If the shower drains slowly or smells, the tray waste and trap may need cleaning or replacing. In hard water areas, regular descaling helps all shower parts last longer. Tile Merchant supplies bathroom products only and does not provide fitting, so we recommend using a qualified plumber for valve and pipework repairs.
Frequently asked questions
Are shower hoses a standard size?
Most shower hoses use standard connections, so they fit most handsets and wall outlets. Check the product page to confirm before ordering.
What is the difference between a wall and ceiling shower arm?
A wall arm extends out from the wall to hold the head. A ceiling arm drops down from the ceiling, positioning the head directly overhead for a rainfall effect.
Can I upgrade my shower head without changing the valve?
Usually yes, if the new head suits your water pressure and connects to your existing arm or hose. Check the product page for details.
Why is my shower spray weak or uneven?
Limescale blocking the nozzles is the most common cause. Clean the head or handset, and replace it if the spray does not improve.
Do you deliver shower components across Ireland?
Yes. We deliver nationwide, and each product page shows the expected delivery time and whether the item is available for collection.