Extendable single lever shower rail stainless steel with matte black finish Roma by Imex

Three positions, one faucet: when shower customization matters

Within the catalog of matte black shower bars, there is a functional difference that is rarely highlighted in product descriptions but makes a real difference in daily use: the number of positions on the shower handle. This is not a minor detail. A single-position handle simplifies operation, yes, but it eliminates the possibility of adapting the type of spray to the preference of the moment. A handle with three positions offers something different: the shower you want, when you want it, with a simple turn.

The Imex Roma Collection Extendable Stainless Steel Single-Lever Shower Bar with Matte Black Finish (ref. BDR001/NG) is built around this premise. S304 stainless steel, matte black finish, 20 cm circular shower head with anti-limescale system, round three-position handle, single-lever faucet with 35 mm ceramic cartridge, brass diverter, 150 cm PVC hose, and extendable bar. A complete shower system, made of solid materials and with the functional versatility that turns every shower into a user-tailored experience.

Technical specifications

What distinguishes the Roma collection: the three-position handle

In the Imex catalog, the Roma collection shares the basic materials — S304 stainless steel, brass, ceramic cartridge — with other lines but introduces a decisive differentiating element: the shower handle with three flow positions. Understanding what this means in practice is understanding why the Roma collection responds to a specific user profile.

The three positions in detail

A shower handle with three positions incorporates an internal selector that allows switching between different water outlet modes. The three common positions in handles of this range are:

Position 1 — Gentle rain: the nozzles produce a soft, diffuse stream of water, ideal for general rinsing, use on hair, or for people with sensitive skin or in recovery. The sensation is enveloping and without impact, similar to a fine drizzle.

Position 2 — Concentrated jet: water is directed through a subset of nozzles that concentrates the flow in a smaller area. This is the preferred position for rinsing specific areas, applying pressure to areas of muscle tension, or for more efficient water use.

Position 3 — Pulsating massage: the water flow alternates between pulses, creating an intermittent pressure effect on the skin. This position has value both as a muscle relaxation tool and for stimulating circulation in frequently used areas such as the lower back and shoulders.

Why three positions matter in a family context

In a family bathroom where people with different preferences and needs coexist — adults with muscle tension after work, elderly people with skin sensitivity, children who prefer soft sprays — the versatility of a three-position handle is not a luxury: it is a functionality that eliminates the need to compromise with a single type of shower for all users.

The same handle, in the same Roma set, addresses all these needs with the turn of an integrated selector. There is no need to install different sets or change components.

The 20 cm circular shower head with anti-limescale system

The upper shower head of the Roma set has a circular shape, ultra-flat profile and 20 cm diameter, manufactured in S304 stainless steel.

Circular geometry in matte black

In a matte black finish, the circular shape of the shower head has a specific aesthetic implication: the absence of sharp edges means that light does not create crisp reflection edges, but rather soft transitions around the circumference. The result is a visually cohesive shower head with the set, without the visual contrast between face and edge produced by square shower heads.

From a usage perspective, the 20 cm circular shower head distributes water radially symmetrically: the same jet density in all directions from the center. At 12 liters per minute, this distribution covers the body without the need for active movements to achieve full coverage, creating a real and uniform rain experience.

The anti-limescale system: effortless black maintenance

On a black shower head, limescale deposits are more visible than on light surfaces. This is the aesthetic downside of black: it requires more consistent maintenance if there isn't a mechanism to facilitate it.

The anti-limescale system with silicone membranes of the Roma shower head directly solves this point. Each injector is equipped with a flexible silicone membrane that releases limescale deposits when a small pressure is applied to the surface of the shower head with the fingers. No tools, specific products, or disassembly are needed. The complete process takes seconds and can even be done while the water is running.

In hard water areas — where limescale is a systematic problem for any surface that is in permanent contact with water — this system makes maintaining the black shower head a routine and frictionless operation.

S304 stainless steel under the black finish

The durability of a shower head's black finish primarily depends on the material it is applied to. Shower heads made of zamak (zinc alloy) or coated plastic are susceptible to internal corrosion under the finish layer, which over time can manifest as peeling, blistering, or color variations in the finish.

The Roma shower head is made of S304 stainless steel, whose chromium-nickel alloy forms a passive protective layer that does not deteriorate with continuous exposure to water, steam, and the usual thermal cycles of the bathroom. The black finish is applied over a base that maintains its structural integrity long-term.

The single-lever faucet: brass, 35 mm ceramic cartridge, and precise control

The Roma set's faucet is single-lever — a single control to simultaneously regulate temperature and flow — with a body made of brass and an internal 35 mm ceramic cartridge.

Brass as a faucet material

Brass is the copper and zinc alloy that the European faucet market uses as a reference material in quality ranges. Its determining properties for bathroom applications are:

Corrosion resistance: the copper in the alloy provides intrinsic corrosion resistance in contact with water that alternative materials — especially zamak — do not have to the same extent. Brass does not develop internal corrosion under normal household use conditions.

Compatibility with quality finishes: brass is the substrate that best accepts high-durability surface finishes, including matte black. The adhesion of the finish to brass is superior to that achieved on other metals or plastic materials, which translates into greater resistance to wear and minor impacts inevitable in daily use.

Density and tactile solidity: the density of brass is perceptible as solidity when operating the faucet handle. In a product for daily use, this sensation of solidity is a direct indicator of manufacturing quality and, functionally, contributes to dampening hydraulic vibrations.

The 35 mm ceramic cartridge

The 35 mm ceramic cartridge that equips the Roma faucet is the component that determines three critical aspects of daily use:

Temperature control without abrupt jumps: the angular displacement of the handle produces gradual and predictable temperature changes. In practice, this means that finding the ideal temperature does not require several successive adjustments: the range of movement of the handle responds proportionally to the water temperature variation.

Long-term drip absence: wear is the main mechanism by which faucets develop drips over time. The ceramic cartridge uses two alumina discs — one of the hardest technical ceramics available — that slide over each other without appreciable wear under household conditions. The probability of the Roma ceramic cartridge developing drips due to wear is practically nil.

Zero maintenance: unlike conventional systems with rubber gaskets that require periodic replacement, the ceramic cartridge has no parts susceptible to deterioration from water exposure. Under normal use conditions, it requires no maintenance throughout its lifespan.

The 35 mm diameter is the standard for quality domestic faucets: it provides the appropriate control surface for smooth and precise adjustment with minimal pressure on the handle, even with wet hands.

The brass diverter: manual selection, reliable distribution

The Roma set includes a brass diverter that manages the water flow between the fixed overhead shower head and the hand shower. Unlike integrated diverters that are an integral part of the faucet, the Roma collection's diverter is a visible and directly accessible component.

What the diverter allows in daily use

The diverter solves a basic functional limitation of shower bars without this component: the need to turn the water off and on again to switch between the overhead shower head and the hand shower. With the Roma diverter, switching is a one-gesture operation: select the water's destination without interrupting the flow or losing the regulated temperature.

Overhead shower head: for rain effect showers, wide body coverage, use without needing to hold any component.

Hand shower: for washing hair with greater control of the jet direction, for focusing water on specific body areas, or for rinsing the shower screen and shower tray after finishing.

The ability to alternate between both destinations without interrupting the flow is a convenience that is especially appreciated in showering routines where the use of the hand shower and overhead shower alternates frequently.

Brass in the diverter: mechanical reliability

The brass diverter shares the corrosion resistance and durability properties that characterize brass components in the rest of the set. A diverter made of inferior materials — zamak, plastic — is potentially the first component in a shower set to develop problems: the internal valves of the diverter are in permanent contact with water and subject to repeated opening and closing cycles. Brass ensures that this component maintains its performance over time.

The Roma collection's matte black finish: total visual coherence

The matte black finish is applied consistently to all visible components of the Roma set: the faucet, the diverter, the hand shower holder, and the mounting elements. The result is a unified visual composition where no component breaks the set's color palette.

The practical properties of matte black in daily use

Fingerprint resistance: the matte finish diffuses light instead of reflecting it specularly, which significantly reduces the visibility of fingerprints and contact marks. In a daily use shower where components are touched multiple times, this property has a direct impact on how long the set can maintain an impeccable appearance between cleanings.

Micro-splashes and limescale deposits: the matte surface facilitates early detection of limescale deposits (which appear as white spots on the black background) but also facilitates their removal: a soft damp cloth is sufficient to remove most deposits before they fully calcify.

Aesthetic aging: matte black does not "scratch" visually in the same way as glossy black. Superficial micro-scratches that inevitably appear with use are integrated into the matte texture without the visibility they would have on a glossy surface. The Roma matte black set maintains a consistent appearance for much longer than glossy finishes.

What spaces the Roma collection's matte black works with

The matte black finish of the Roma collection integrates naturally into:

• Bathrooms with white or light gray tiles, where matte black acts as a contrasting element that gives visual definition to the space without oversaturating it with color

• Bathrooms with polished cement or microcement in neutral tones, where black intensifies the palette without straying from the same range of austerity

• Bathrooms with dark wood elements in furniture or countertops, where black establishes a tonal continuity with natural materials

• Industrial or minimalist trend bathrooms, where matte black is one of the reference finishes along with exposed steel and concrete

• Black + white + natural color schemes, which is arguably the most widespread combination in contemporary bathroom interior design and in which matte black is the structuring axis of the palette

S304 stainless steel: the base that guarantees durability

The extendable bar and the shower head of the Roma set are made of S304 stainless steel (AISI 304), the reference alloy for bathroom applications in the European market.

The S304 specification indicates a minimum content of 18% chromium and 8% nickel in the alloy. This composition has a relevant structural consequence for bathroom use: in the presence of oxygen, the chromium in the alloy spontaneously forms a chromium oxide layer on the steel surface that acts as a permanent barrier against corrosion. This passive layer:

• Automatically reforms if mechanically damaged, provided oxidizing conditions exist

• Resists continuous exposure to steam and the wet-dry temperature cycles of the bathroom environment

• Does not react with chlorine present in domestic supply water, which is potentially corrosive to metals without the proper alloy

• Withstands common household cleaning products without degradation of the protective layer

Choosing a shower set with S304 structural components has a direct practical implication: the set will not develop visible rust or points of structural deterioration under normal household use, regardless of how long it has been in use.

Flow rate of 12 liters per minute: balance between experience and efficiency

The 12 liters per minute flow rate of the Roma set is the result of the combined design of the 20 cm circular showerhead and the 35 mm ceramic cartridge mixer tap at standard domestic pressure (between 2 and 4 bar).

For a 20 cm circular showerhead, 12 liters per minute produces a water density per unit area that creates uniform and noticeable coverage without the feeling of "weak rain" that appears when the flow rate is insufficient for the showerhead's area. At higher flow rates with the same showerhead, the experience improves marginally while water consumption increases proportionally.

In terms of consumption:

• A 7-minute shower with the Roma set: ~84 liters

• A 10-minute shower: ~120 liters

• In comparison, a standard bathtub requires 150-200 liters to fill

Daily showering with the Roma set is consistently more water-efficient than bathing in a tub, even with generous shower times.

The 150 cm PVC hose: high-quality standard functionality

The Roma set's hose measures 150 cm and is made of quality PVC. This length is the standard for comfortable domestic use: it allows the three-position hand shower to reach all parts of the body from any position within the shower enclosure, as well as cleaning the walls and tray, without excessive length becoming an obstacle in the space.

The connections at both ends follow the European 1/2" thread standard, ensuring compatibility with the set's components and the possibility of replacement if necessary without resorting to proprietary parts. The quality PVC used in this hose maintains its flexibility under continuous exposure to hot water without the progressive hardening that affects lower-specification materials.

The extendable bar: tool-free adjustment

The Roma set's extendable bar allows the length of the bar — and therefore the height of the overhead shower — to be adjusted to each user's preference. This adjustment requires no tools: the extension is made by sliding the upper section of the bar and fixing it in the desired position using the built-in locking mechanism.

The extendable bar has a dual purpose:

Installation: It allows the set to be adapted to different ceiling heights and shower enclosure configurations without the need to cut or modify the bar.

Daily use: In a shared bathroom, the bar can be adjusted to the optimal height for the showerhead according to the main user's height. In families where users have very different heights, the possibility of adjustment ensures that the overhead shower is always in the correct position to cover each user's body without them having to bend over or move away from the spray.

The adjustable hand shower holder

The height-adjustable holder that supports the hand shower on the bar allows the hand shower to be positioned at the most comfortable point for each user, regardless of the bar's installation height.

In practice, the adjustable holder complements the flexibility of the three-position hand shower: not only is the spray type selectable, but also the height from which the hand shower rests when not in use, which means it is always at hand without needing to be actively held.

Installation Guide

The Roma set is a wall-mounted installation system that replaces an existing wall-mounted shower mixer tap or is installed over a new concealed water outlet. Key points before installation:

1. Verification of the existing water outlet: the mixer tap requires two water inlets (hot and cold) with a standard separation of 150 mm between centers. In most bathrooms with an existing wall-mounted shower, replacement is direct without additional construction work

2. Marking the fixing points: verify perfect verticality before marking the drill holes. A small deviation from vertical affects the operation of the extension mechanism and the appearance of the installed set

3. Drilling in tiling: use a specific drill bit and plug for ceramic. Apply neutral silicone around the perimeter of the anchor plates to prevent water infiltration behind the tiling

4. Hydraulic connection: apply Teflon tape to the threads of the water inlets. Check for leaks before finalizing the installation

5. Distributor verification: check the operation of switching between showerhead and hand shower before considering the installation complete

⚠️ It is recommended that a qualified plumber handle the connection to the water network. Incorrect installation can lead to hidden leaks in the wall, which are difficult and costly to detect.

Maintenance of the Roma set

Showerhead: Periodically rub the showerhead surface with your fingers to activate the anti-limescale system and release limescale deposits before they accumulate. Dry the showerhead face after use in very hard water areas.

Mixer tap and bar: Clean with a damp cloth and dry with a soft cloth. Avoid acidic, bleach-containing, or abrasive cleaning products. Neutral cleaners and those specific for stainless steel are compatible with the matte black finish.

Distributor and hand shower: Regularly clean the distributor connections and the hose to prevent limescale buildup in the joints. A damp cloth is sufficient for regular external cleaning.

Differentiation of the Roma collection from other Imex black sets

For those evaluating between several matte black shower sets from Imex, the following table summarizes the main differences:

The Roma collection is the right choice when the functional versatility of the three-position hand shower is a priority. The Delos collection prioritizes the aesthetic integration of the diverter and metal hose. The LINE black collection offers a brushed black finish (with micro-grooves) compared to the complete matte black.

About Imex and the Roma collection

Imex is a Spanish manufacturer with decades of experience in shower systems for the European market. The Roma collection represents the line oriented towards users who value practical functionality —especially the versatility of the multi-position hand shower— without sacrificing the constructive quality of the materials or the contemporary design of the matte black finish.

The 5-year warranty backing the Roma set is a direct indicator of the manufacturer's confidence in the durability of the components and the quality of the manufacturing process. During this period, manufacturing defects under use in accordance with the manufacturer's instructions are covered, with spare parts and technical service availability that less industrially solid manufacturers cannot guarantee with the same consistency.

Who is it the right choice for?

The Roma matte black set is the right choice if:

• You value the versatility of the three-position hand shower (soft rain, concentrated jet, pulsating massage) to adapt the shower to your preferences or to the needs of different users

• Your bathroom has a contemporary design where matte black is the chosen finish for the taps and accessories

• You need a complete set —mixer tap, showerhead, hand shower, bar, hose, diverter— made of proven quality materials (S304, brass, ceramic cartridge) with the visual consistency of matte black in all components

• Your installation has a wall water outlet and allows for direct replacement of an existing mixer tap

Consider other options if:

• You prefer a built-in diverter in the mixer tap and a metal hose → Imex Delos collection

• You prefer brushed black (with micro-grooves) instead of complete matte black → Imex LINE collection in black

• You want the same system in a brushed gold finish → Imex ART or LINE collections in gold

Summary: what's included and why it matters

✅ Extendable S304 stainless steel bar — structural corrosion resistance, height adjustable
✅ Matte black finish — full visual depth, fingerprint resistant, consistent aesthetic aging
✅ Extra-flat 20 cm circular showerhead — uniform rain effect coverage, rounded visual integration
✅ Anti-limescale system with silicone membranes — keeps black finish in seconds, no tools
✅ Round 3-position hand shower — soft rain, concentrated jet, and pulsating massage in one component
✅ Height-adjustable holder — positions hand shower at each user's height
✅ 150 cm PVC hose — wide range of motion, long-lasting flexibility
✅ Brass diverter — reliable switching between showerhead and hand shower, corrosion resistance
✅ Matte black brass mixer tap — one lever for temperature and flow, real tactile solidity
✅ 35 mm ceramic cartridge — precise control, no dripping from wear, no maintenance
✅ Flow rate 12 L/min — real coverage for 20 cm showerhead, efficient consumption
✅ 5-year warranty against manufacturing defects
✅ Ref.: BDR001/NG | Collection: Roma | Brand: Imex