Elkay vs Acorn Thorn: Which Bottle Filling Station Is Right for Your Project?

Elkay and Acorn Thorn both offer UK-stocked refill stations with WRAS-approved valves. Acorn Thorn adds chilling and filtration to stainless-steel bodies, while Elkay integrates these systems with sensors and monitoring. Compare accessibility, spares and servicing.

Elkay vs Acorn Thorn at a Glance

Where the two ranges overlap, where they diverge, and where each one has something the other simply does not offer. Both catalogues are broad and specifications vary by model, so treat this as a shortlist filter rather than a datasheet.

At a glance Elkay Acorn Thorn
WRAS-approved fittings for UK mains supply ✓ ✓
Chilled and filtered combination units ✓ ✓
Touch-free sensor bottle filling ✓ ✓
NSF/ANSI 42, 53 and 401 certified filtration ✓ ✓
Certified PFAS-reduction filtration ✓ ✓
UK stock and short lead times ✓ ✓
Indoor and outdoor model ranges ✓ ✓
Filtration integral across the bottle-filling range ✓ ~
Junior-height units as a catalogue standard ~ ✓
Foot-operated and non-electric models ~ ✓
GRP, concrete and 316-grade body options ~ ✓
Filter-life indicator on the unit ✓ ✕
Bottle-count display for sustainability reporting ✓ ✕
Filter capacities above 3,000 gallons ✓ ✕
Multi-user filling troughs with two to five spouts ✕ ✓
Bespoke sizes and purpose-made fabrication ✕ ✓

Elkay

Supplied & Supported by WRG

Zurn Elkay Water Solutions, USA. Distributed, stocked and serviced throughout the UK and EU by Water Refill Group, with WRAS approval across the range and genuine spares held here in Britain.

  • Manufacturer: Zurn Elkay Water Solutions, USA
  • UK & EU supply: exclusive WRG distribution, stock held in Buckinghamshire & Tilburg
  • Filtration: WaterSentry Plus / VII, front-access quarter-turn cartridge, fitted as standard across the ezH2O range
  • Certification: NSF/ANSI 42, 53 and 401 (model dependent)
  • WRAS approved across the UK range, with certification supplied for your specification pack
  • Activation: sensor-activated bottle filler with automatic 20-second shut-off
  • Monitoring: filter-life status lights, plus Green Ticker™ counting single-use plastic bottles saved
  • Parts & servicing: genuine Elkay parts and filters in UK stock, with Smart, Gold and Silver service plans
  • Retrofit: ezH2O retrofit kits add bottle filling to a sound existing Elkay fountain
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Acorn Thorn

For Comparison

Acorn Thorn Limited is a British sanitaryware manufacturer and stockist based in Gloucester, trading for around three decades. Drinking fountains and bottle fillers sit within a much wider catalogue that also covers urinals, WCs, wash troughs, showers and eyewash stations. Water Refill Group does not supply Acorn Thorn and includes the brand here so the comparison is a fair one.

  • Manufacturer: Acorn Thorn Limited, Quedgeley, Gloucester
  • UK supply: direct from the manufacturer, most popular models from stock in 1 to 3 working days
  • Filtration: AQ-WF3EZ panel with quarter-turn cartridge, offered as an optional extra on the AQ cooler models
  • Certification: NSF/ANSI 42, 53 and 401 with PFAS reduction on the WF3EZ cartridge
  • WRAS: approved bubblers, bottle-filling valves and swan neck spouts fitted as standard
  • Activation: push button, lever, foot pedal or sensor, depending on the model chosen
  • Monitoring: no filter-life indicator or bottle-count display published across the range
  • Parts & servicing: bubbler valves, cartridges, repair kits and keyed-alike locks direct; servicing arranged through your own contractor
  • Retrofit: hands-free conversion kits convert an existing fountain to foot operation, and are not compatible with Elkay equipment.
Ask Us to Compare
Application Chilled filtered combi Filtered in-wall Barrier-free cooler Slim surface-mount Mains-free mechanical Multi-user trough Outdoor pedestal Outdoor wall-mounted Retrofit and conversion
Elkay model ezH2OLZO8WSS2KN ezH2O In-WallLZWSM82K ezH2O ADA CoolerLMABF8WSS2KN ezH2O Surface-MountEZWSSMJO ezH2O MechanicalEMASMB No direct equivalent Outdoor PedestalLK4400BFEVGWR Outdoor Single-ArmLK4405BFEVG ezH2O Retrofit Kit
Closest Acorn Thorn equivalent Accessible CoolerAQ-A171408-BF12 Recessed Bottle FillerBF486N / DFBF470 Accessible Wall CoolerAQ-A171408F-UG-220V Compact Bottle FillerBF491 / AQ-BF18 Foot OperatedBF901 / BF904 Filling TroughBF910 / BF915 Outdoor Bottle FillerMOBFM5 / GYM75 Outdoor Wall FountainGRC75 Hands-Free ConversionHFBF-CONV
Chilled ✓ – ✓ – – – – – –
Filtered ~ – ~ – – – – – –
Touch-free ✓ – ~ ~ ✓ – – – ✓
Best suited to Matches Elkay on chilling and sensor filling; filtration is a cost option Mechanical only, so no chilled recessed equivalent exists Check approach and reach against Part M, not brand wording Tight-plan interiors; ambient water only Deeper foot-operated range where an electrical first-fix is disruptive Corridors and sports halls with heavy peak demand Parks and exposed sites; Elkay uses 316 marine-grade stainless Constrained external walls and high-turnover areas Adds bottle filling (Elkay) or converts to foot operation (Acorn Thorn)
Elkay vs Acorn Thorn: Common Questions About Elkay

The questions we field most often when a specifier is weighing Elkay against a British stainless steel alternative.

Three things, mainly. Filtration is integral across the ezH2O range rather than an optional panel on selected models. The unit tells you when the cartridge is nearing the end of its life, so filter changes get planned instead of discovered. And the Green Ticker counts the single-use bottles saved, which is the number estates teams and school eco-committees actually get asked for. If none of those matter to your project, the case for Elkay is much weaker and we would rather say so.
Not on the cartridge itself. Acorn Thorn's AQ-WF3EZ is independently certified to NSF/ANSI 42, 53 and 401 with PFAS reduction, rated at 3,000 gallons and changed with a quarter turn — which is close to a like-for-like match with WaterSentry. Elkay's advantages are breadth and monitoring: higher-capacity cartridges up to 10,000 gallons for genuinely high-traffic locations, and status indication on the unit. On a low-traffic single install, the two are hard to separate.
It splits by building type more than by brand. A secondary school corridor that empties four hundred pupils in five minutes is often better served by an Acorn Thorn multi-spout trough than by any single-point filler. A primary school wanting chilled filtered water at junior height, with staff who need to see when a filter is due, is closer to Elkay territory. Many estates end up running both, and that is a perfectly sensible outcome.
Sometimes. An ezH2O retrofit kit adds bottle filling to a suitable existing fountain without full replacement or a new first fix, but the kits are chassis-specific and designed around Elkay units. If your existing equipment is Acorn Thorn, the kit will not fit and their own hands-free conversion parts are the better route. Send a photo and a model number and we will tell you which way to go.
We do. Water Refill Group is Elkay's exclusive UK and EU distributor, with stock in Buckinghamshire and Tilburg. That gives you one contact for pricing, technical data, WRAS documentation, installation and aftercare, plus genuine parts from UK stock and Smart, Gold or Silver plans covering planned servicing rather than reactive callouts. Acorn Thorn sells direct and holds its own spares, but arranging engineers is generally left to you.
Elkay vs Acorn Thorn: Common Questions About Acorn Thorn

We don't supply Acorn Thorn, and we would rather answer these straight than pretend a capable British manufacturer isn't there.

No. We are Elkay's exclusive UK and EU distributor and supply the Elkay range only. Acorn Thorn is here because it is a genuine alternative and a good one. If you have been handed an Acorn Thorn schedule we can identify the nearest Elkay equivalent — and if the Acorn Thorn unit is the better fit for what you are building, we will tell you that too.
More often than a distributor page usually admits. Choose Acorn Thorn when the site has no practical electrical supply, when vandalism means a mechanical push-button or foot valve will outlive anything with a sensor in it, when you need junior heights or a bespoke size, when peak-demand throughput matters more than water temperature, or when the drinking points are part of a wider washroom package they can supply in one delivery. Their multi-user troughs in particular have no Elkay counterpart.
Their bubblers, bottle-filling valves and swan neck spouts are advertised as WRAS approved, and they publish this at product level. Worth checking on any brand, ours included, is what the approval certificate actually covers — the individual fitting, or the assembled unit as installed. Ask for the approval number against the exact model reference at RIBA Stage 4 and put it in the pack. That advice applies equally to Elkay.
No. The WF3EZ panel is designed around Acorn Thorn's AQ cooler models and WaterSentry cartridges are matched to Elkay stations. Fitting the wrong cartridge affects performance and voids warranty cover on both sides. Whichever brand you specify, price the replacement cartridge and check its lead time before you commit — that recurring cost often outweighs the difference in capital price.
Yes, and it is one of our most common requests. Send the schedule, drawings or model references and we will return the nearest Elkay equivalent by function, the WRAS documentation and a costed comparison. Where the existing specification is already the right answer, we will say so rather than talk you into a swap.
What we compared Elkay WaterSentry Acorn Thorn AQ-WF3EZ Simple verdict
Typical filter WaterSentry 51300C Easy Change panel AQ-WF3EZ / AQ-RWF3000 Always check which filter fits your exact station.
How the filter works Uses activated carbon and a prefilter to improve taste and reduce contaminants. Dual stage, combining a hollow-core fibre element with a carbon block. Draw: both are proven two-stage carbon designs.
Filter certification Certified to NSF/ANSI 42 and 53. The 51300C is also certified to NSF/ANSI 401 for microplastic reduction. Independently certified to NSF/ANSI 42, 53 and 401, plus PFAS reduction. Draw: closer than the price difference suggests.
Lead reduction ✓ Certified to reduce lead ✓ Certified to reduce lead Draw: both offer certified lead reduction.
Chlorine, taste and odour ✓ Improves taste and reduces chlorine odour ✓ Improves taste and reduces chlorine odour Draw: both help water taste and smell better.
Cyst reduction ✓ Available on applicable WaterSentry filters ✓ Included with the WF3EZ cartridge Draw: both provide certified cyst reduction.
Microplastic reduction Selected WaterSentry filters are specifically certified to reduce microplastics. Certified to NSF/ANSI 401 for microplastic reduction as standard. Draw: both hold the relevant certification.
PFAS reduction Dedicated Elkay filters are available for certified PFAS reduction. 71300C reduces PFOA and PFOS PFAS reduction is included on the standard cartridge. PFOA, PFOS, PFHxS and PFNA Acorn Thorn has an edge: four named compounds without changing cartridge.
Standard filter capacity 3,000 gallons Approximately 11,356 litres 3,000 gallons Approximately 11,356 litres Draw: identical rated capacity.
High-capacity filters Compatible options range from 6,000 gallons up to 10,000 gallons on selected systems. A single 3,000 gallon cartridge is offered. Elkay wins: materially better for high-traffic sites.
Coverage across the range Filtration is fitted as standard across the ezH2O range. An optional extra, compatible with the AQ cooler models. Elkay wins: filtration is not a line item to forget.
When to replace the filter Replace after reaching its rated capacity or after 12 months. Replace after reaching its rated capacity or after 12 months. Draw: both normally require an annual change.
Changing the filter A quick quarter-turn connection makes the filter easy to remove and replace. A quarter-turn cartridge sits behind an access door for tool-free changes. Draw: both are designed to be easy to change.
Automatic water shut-off Water automatically shuts off when the filter is removed. Water automatically shuts off when the filter is removed. Draw: both help prevent spills during filter changes.
Filter status display Compatible stations show when the filter is working or needs replacing. No filter status indication is published. Elkay wins: changes get planned rather than missed.
Can the filters be swapped? Elkay filters must be matched to a compatible Elkay station. WF3EZ cartridges must be matched to a compatible Acorn Thorn system. No: Elkay and Acorn Thorn filters are not interchangeable.
Best choice for High-traffic sites, and estates that want filter status visible on the unit. Projects wanting certified filtration including PFAS at lower capital cost. It depends: on traffic volume and who changes the filters.
Overall winner Offers a broader capacity range and on-unit monitoring across the whole ezH2O line. Matches Elkay cartridge for cartridge on certified contaminant reduction. Elkay wins on range and monitoring, not on what the filter actually removes.

Find Elkay Here

Why Choose Us?

Exclusive UK Elkay Partner

We’re proud to be the exclusive authorised partner for Elkay bottle filling stations in the UK. That means direct access to genuine parts, faster support, and expert knowledge you won’t find anywhere else. When it comes to Elkay, we’re the people to trust.

Approved & Accredited Technicians

All of our engineers are fully vetted, trained, and approved to service Elkay and other leading hydration systems. You can count on consistent service quality, full compliance, and peace of mind with every visit.

Fast Response Times

When issues arise, we’re ready. With nationwide coverage and priority call-out availability, we’re structured to respond quickly and efficiently - helping you minimise disruption and keep your refill points flowing.
Shop Our Elkay Range View

View Our Elkay Range

Maintenance, Parts and Expected Downtime: Elkay vs Acorn Thorn

Both brands hold spares in Britain, which removes the usual import argument from an Elkay vs Acorn Thorn comparison entirely. What separates them is the kind of maintenance each design asks for and who you expect to carry it out. Before selecting either, check how many components a fault could involve, whether your own team can complete a repair, and what happens when it cannot.

What we compared Elkay Acorn Thorn What this means for you
Routine maintenance Regular cleaning, sanitisation, filter changes and safety checks are recommended. The same schedule applies, with the mechanical range needing valve checks rather than filter changes. Similar: both brands need planned maintenance to remain hygienic and reliable.
Filter replacement Uses a quick-disconnect cartridge with a quarter-turn connection and automatic water shut-off. Uses a quarter-turn cartridge behind an access door, also with automatic water shut-off. Similar: both filters are designed to be changed without complicated tools.
Time needed to change a filter Selected enhanced ezH2O models provide front and side access, allowing a trained person to change the filter in under a minute. The access panel opens directly onto the cartridge, though no standard change time is published. Roughly equal: access design matters more here than the badge on the unit.
Filter-change alerts Compatible stations use coloured status lights to show when the filter is approaching the end of its life. No filter status indication is published, so changes are diarised rather than prompted. Elkay has an edge: the unit itself reminds the team before performance drops.
Automatic diagnostics Selected enhanced ezH2O models can display system alerts when the station detects an operating problem. The AQ cooler range includes a leak detection shut-off valve that isolates the supply. Different strengths: Elkay flags a fault, Acorn Thorn contains one specific failure.
Access to internal components Access varies by model. Enhanced units with drop-down panels are designed to make filters and service components easier to reach. Floor-standing units have lockable side panels and rear cut-outs, with keyed-alike locks available across models. Check the model: service access can differ considerably across both ranges.
Mechanical serviceability Sensor, transformer and refrigeration faults need a qualified engineer with the right parts. Push-button and foot valves can be rebuilt in place using a bubbler repair kit. Acorn Thorn wins: a site plumber can often fix a mechanical unit the same day.
Replacement filters Water Refill Group holds genuine Elkay filters in UK stock for the models it supplies. WF3EZ cartridges ship from their own stock, usually within one to two working days. Draw: both are UK-held, so neither carries an import delay.
Replacement parts Genuine Elkay parts are available through Water Refill Group’s UK and EU supply network. Bubbler valves, cartridges, repair kits and locks are sold directly alongside the units. Draw: both maintain a proper spares operation you can order from.
UK servicing Water Refill Group offers installation, planned servicing, filter changes and repair support for Elkay equipment. Equipment is supplied direct, with installation and servicing arranged through your own contractor. Elkay is more contained: supply, parts and labour sit with one provider.
Warranty Selected refrigerated models include five-year refrigeration-system cover and 12-month cover for electrical and water-system components. Warranty terms are not published per model and should be requested before ordering. Confirm in writing: get the cover for your exact model into the order paperwork.
Planned maintenance downtime Filter changes and routine servicing can normally be completed during a planned maintenance visit. Routine servicing is comparable, and mechanical units need only an isolation valve turned off. Usually low: planned maintenance should cause only a short interruption.
Refrigeration-system downtime A compressor or sealed refrigeration fault requires a qualified engineer and may take longer than a routine repair. The chilled AQ and Cosmetal units carry the same risk, since refrigeration faults need specialist diagnosis. Similar: major cooling faults create the longest downtime for either brand.
Non-electric equipment Limited to selected mechanical models such as the surface-mount EMASMB. The mechanical range has no compressor, sensor or transformer that can fail. Acorn Thorn wins: fewer components means fewer ways for a unit to stop working.
Best option for multiple sites Suitable for estates wanting one UK contact for equipment, filters, parts and planned servicing. Suits estates with in-house maintenance teams comfortable holding valve spares on the shelf. Match it to your team: the right answer depends on who actually fixes things.
Overall verdict Lower coordination risk and more capability on the unit, but more that can go wrong. Simpler to repair and cheaper to keep running, but the unit tells you nothing. Neither is universally better: specify Elkay where filtration and monitoring earn their place, and Acorn Thorn where robustness and simplicity matter more.

How can you reduce bottle filling station downtime?

Whichever way the decision falls, downtime is driven by preparation rather than badge. Arrange planned servicing, keep the right cartridge and the common wear parts on the shelf, and standardise models across an estate so your team is not juggling several filter types, spare-parts lists and service procedures.

Before ordering, ask which parts are physically held in the UK, whether engineers cover your postcode, what response time is committed to and what the warranty excludes. Ask both suppliers the same four questions and the answers will tell you more than any comparison table.

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