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Water Filters Cartridges

Water Filters Cartridges

A filter tap is only as good as its cartridge. This is where replacement cartridges for every filtered tap brand we stock live in one place, Triflow's three-way cartridges, Grohe Blue's activated carbon filters, Zip HydroTap's filters and CO2, and Nobili's BWT-technology cartridge, so the job here is matching the right part to the tap and brand you already own, not browsing for a new one.

What the cartridge actually does

A filter tap's entire job happens inside the cartridge, not the tap body above the worktop. Mains water passes through it before it reaches the spout, and that's the only part actually doing any filtering, whatever the tap itself looks like. Because of that, the cartridge is also the one component every filter tap asks you to replace, on a schedule set by use rather than a fixed date, which makes it a genuinely different kind of purchase to the tap itself: a running cost you plan for, not a one-off.

Matching the cartridge to your tap

Getting the right part starts with the brand and model you already own, since a cartridge built for one system doesn't fit another. Triflow's three-way taps take Triflow's own cartridges, in the fitting your existing housing already uses; Zip HydroTap owners need the filter matched to their unit's generation, alongside a CO2 cylinder if the tap does sparkling water; Grohe Blue's activated carbon cartridge and small tap filter serve Grohe's own filtered taps; and Nobili's AQA Drink cartridge, built on BWT's zinc-magnesium technology, is the part behind Nobili's filtered range, available in two sizes. If you're unsure which you have, check the tap itself or your installation paperwork before ordering, since the brand name alone doesn't always make the model obvious. For the taps these cartridges fit, rather than the cartridges themselves, browse filter water taps.

Living with a filter tap's running costs

Owning a filter tap makes cartridge replacement a recurring part of owning it, not a purchase you make once and forget, the same way any filtered water system asks for a fresh cartridge periodically. A genuine cartridge, built to the tolerances the housing or unit expects, is the dependable choice for fit and for keeping any usage indicator accurate; compatible third-party versions exist across most of these brands, but fit and performance aren't guaranteed the way a genuine part is. For the full detail on your own brand's fitting and generation, Zip Water's own filters and CO2 page and Triflow's own filters range both go deeper than a cross-brand page like this one can.

Why shop with The Tap Collection

Every order includes free mainland UK delivery and the full manufacturer warranty, and you can spread the cost with Klarna or PayPal Pay in 3 at checkout. Our UK based team is happy to help with filter and compatibility questions: call 0330 133 2247, email info@thetapcollection.co.uk or send us a message through our contact form. We are open Monday to Friday, 9am to 5pm, and aim to reply within 24 hours on working days.

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Frequently Asked Questions

How do I know which cartridge fits my filter tap?

Start with the brand and model rather than the tap's finish or style, since neither indicates which cartridge fits. Triflow, Zip, Grohe Blue and Nobili each use their own cartridge, matched to the specific unit or housing under your sink. Check your installation paperwork or the tap itself if you're not sure which you have before ordering.

Is a genuine replacement cartridge worth it over a compatible one?

Generally, yes, if fit and accuracy matter to you. A genuine cartridge is built to the tolerances its housing or unit expects, so it seats properly and keeps any usage indicator reading correctly. Compatible third-party versions exist for several brands and cost less, but neither fit nor filtering performance comes with the same guarantee a genuine part carries.

Do all filter taps use the same size cartridge?

No, cartridges are specific to the brand and often the model or generation of tap, not interchangeable across the range. A Zip HydroTap, a Triflow three-way tap and a Grohe Blue system each take their own part, so buying by brand and model is the only reliable way to get a cartridge that fits.

What's the difference between a filter tap and a standard mixer tap?

A filter tap routes water through a cartridge before it reaches the spout, removing chlorine and other impurities from a dedicated filtered channel alongside the everyday hot and cold supply. A standard mixer only ever delivers mains water. If you're choosing the tap itself rather than a replacement part, filter water taps is the collection to browse instead of this one.

Does a sparkling Zip HydroTap need anything beyond the water filter?

Yes, a CO2 cylinder as well, since carbonation is a separate consumable from filtration and runs on its own replacement schedule based on how much fizzy water gets poured. A boiling or chilled-only HydroTap has no cylinder to buy, since that need is exclusive to the sparkling function.

How often does a filter cartridge need replacing?

It depends on the brand and how much water passes through it rather than a fixed interval, so there's no single number that applies across every system here. Zip HydroTaps track usage and flag a change themselves; other brands set a recommended interval instead. Check your own unit or housing for guidance rather than assuming one schedule fits all of them.

Do you offer free delivery?

Yes, we offer free mainland UK delivery on all orders.

Orders are processed within 24 hours (Monday to Friday) and typically arrive within 1–4 business days. Please note that offshore regions and the Scottish Highlands may incur additional charges.

Do you offer finance or payment plans?

Yes, we do, we offer Klarna and PayPal Pay in 3 at checkout, allowing you to split your purchase into three interest-free payments with no fees, subject to approval.

Do you offer bulk or wholesale orders?

Yes, we can accommodate bulk and wholesale orders for selected products and projects.

If you’re purchasing multiple items for a trade, commercial, renovation or development project, please request a quote with the products and quantities you require.

Depending on the order size and brand, we may be able to offer tailored pricing, lead-time information and product recommendations.

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