Zip Water HydroTap 0.2 Micron Filter against a water effect background

Zip Water HydroTap Filter Cartridges

Filters run out. That's true of every HydroTap ever sold, sparkling or not, and it's why this range exists: genuine Zip water filters and CO2 cylinders, matched to the unit you already own rather than browsed like a new tap.

What the filter actually does

A HydroTap filters incoming mains water before it's heated, chilled or carbonated, so the cartridge is doing the work that makes the water worth drinking in the first place. The system tracks throughput rather than a calendar date, flagging a replacement once the cartridge reaches its threshold, which is why two households on the same model can need a change at very different intervals. Hard water reaches that point sooner than soft, and a tap in constant use reaches it sooner than one used lightly. Treat it as a running cost that tracks how much you actually use the tap, not a fixed annual errand.

Matching the filter to your HydroTap

The detail buyers get wrong most often isn't fineness, it's fit. Both of the main filters in this range filter to 0.2 microns, so neither is the sharper or higher-quality option: the Triple filter fits G4 units, and the Submicron cartridge fits other HydroTap models, and getting that pairing right matters more than anything else here. Check your unit's generation before you buy rather than going by the tap's finish or water type, and if you're not sure which you have, the unit itself or your installation paperwork will confirm it. Sparkling models add a second consumable that runs on its own separate schedule, CO2 cylinders, stored in the same cupboard and swapped as the household gets through them. Whether sparkling is worth having in the first place is a question for the sparkling range rather than this page, which only covers keeping a sparkling tap you already own running.

Living with a HydroTap's running costs

Owning a HydroTap makes this a recurring errand for as long as you have the tap, not a purchase you make once and forget. Filters and cylinders are a genuine ongoing cost on top of whatever you paid for the tap itself, and knowing that going in means you never resent it later, it's simply what owning one of these means. Genuine Zip cartridges are built to the tolerances the filtration system and usage indicator expect, so they're the dependable choice if you want that indicator to stay accurate; third-party compatible filters exist, but fit and performance aren't guaranteed the same way. For parts beyond filters and CO2, such as fonts, drains and fittings, see Zip accessories instead, a one-off purchase rather than a recurring one. For the full range this sits alongside, see Zip Water.

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.

Frequently Asked Questions

How long does a Zip HydroTap filter last?

It depends on how much water passes through it rather than how many months have gone by, since the system counts usage instead of counting a calendar. A household drawing water constantly reaches the change point sooner than one that uses the tap lightly, and hard water shortens it further. The tap tells you when a change is due, so you're never left guessing.

How do I know when it's time to buy a replacement filter?

The HydroTap itself flags it, through an indicator on the unit, once usage reaches the cartridge's threshold, so there's no need to track dates or count litres yourself. That flag is the point to order the replacement cartridge, and matching the right part starts with knowing your unit's generation.

Does my HydroTap need a different filter depending on the generation?

Yes. G4 and G5 HydroTaps take different cartridges, and a filter built for one generation doesn't fit the other, which is the single most common ordering mistake. Check which generation your under-counter unit is before buying, since the tap's water types and finish give no clue to this, and match the part accordingly.

Do I need a separate CO2 cylinder for a sparkling HydroTap?

Yes. If your tap does sparkling water, a CO2 cylinder is a separate consumable from the water filter, stored in the same under-counter cupboard and swapped on its own schedule based on how much fizzy water gets poured. A boiling or chilled-only HydroTap has no cylinder to buy or replace, since carbonation's exclusive to the sparkling function.

Is a genuine Zip filter necessary, or do compatible cartridges work?

A genuine Zip cartridge is built to the tolerances the HydroTap's filtration system expects, so it's the dependable choice if you want the usage indicator to stay accurate. Third-party compatible filters exist, but fit and performance aren't guaranteed the way a genuine part is, which matters more here than on a tap you're simply topping up.

What is the difference between a Submicron filter and a Triple filter?

Which cartridge you need depends on which HydroTap you have, not on preference. The Triple filter fits G4 units, and the Submicron cartridge fits other HydroTap models. Both filter to 0.2 microns, so neither is the finer or higher-quality option, only the one that fits your unit. Check your unit's generation before ordering, since the name alone doesn't tell you which cartridge it takes.

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.