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Replacement Cartridges & Filters

At Celtic Water Solutions, aftercare service is something we take care of very seriously. We want our customers to drink only the best water. To ensure your drinking water system keeps performing at its best, it is essential to periodically change the filters. In general, we recommend changing all the filters on your filtration system annually. As a leading water treatment company in Ireland, we house an extensive range of replacement filters, spare parts, valves and much more. Even if you are using a filtration system from another supplier, we can supply you with the replacement filters. Our filters can be bought online from our website. Alternatively, you may book a service and one of our technicians can come out to your home and replace the filters for you.

Reverse Osmosis Replacement Filters

Reverse osmosis filters and membranes are essential components in all reverse osmosis systems and it is important to replace them at regular intervals to ensure systems perform at maximum efficiency. We offer a wide range of filters and membranes suitable for use in a number of systems such as Ecosoft, Pure Pro, Proline Plus, EWT, Water2Buy, AquaSoft, EirSoft, and many more. Our RO replacement filter sets include all 5 filters you would need to replace to keep your RO system in top condition.

Carbon Filters

Carbon filters are an effective way to remove chlorine & organics from water and enhance its taste. Our carbon block & GAC filters are compatible with the majority of 10” housings and standard RO systems available on the market. We recommended changing them every 6 months depending on usage.

Sediment Filters

Sediment filters are designed to reduce the amount of dirt, sand, rust and debris often found in water. We offer a wide range of sediment filters for a wide variety of applications. So whether you require a wound, spun, or pleated filter, we have a solution available. We recommended changing them every 6 months depending on usage.

Reverse Osmosis Membranes

A membrane is the heart of an RO system removing contaminants such as fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates. We sell reverse osmosis membranes made from 100% food-grade Thin Film Composite (TFC) material for ultimate purification performance with high permeate flow. We recommended changing them every 1-2 years.

Taste & Odour Filters

Taste and odour filters improve the taste of water and are often used as a post-filter on reverse osmosis systems. It clips onto the membrane housing and will filter the water after the tank, acting as a polishing filter. These filters can also be used in other applications such as water coolers, coffee machines, and fridges.

Doulton Replacement Filters

Doulton is a world leader in ceramic filtration technology specializing in high quality filters for everyday use. As Doulton’s Authorized Distributor in Ireland, expect only the original replacement candles when buying from us. You can buy a range of replacement ceramic filters for Doulton undersink and countertop systems on this website. Shower Filter Replacements Keep enjoying chlorine-free water from your shower with our shower filter replacement cartridges. Our shower replacements are easy to use and install. We recommended changing them every 4-6 months.


Need help or want to book a service?

For any customer care queries or to book a service, simply email us at culliganhome.support@culligan.ie.

A member of our customer service team will get back to you as quickly as possible.

Frequently Asked Questions

Shipping

Why can delivery of salt or heavy items take longer?

Heavy products require specialised handling and may ship via pallet or scheduled delivery routes, which can extend delivery times by 1–2 days.

Do you offer nationwide delivery?

Yes. Culligan offers nationwide delivery across Ireland, supported by a fleet of vehicles and installers in every county.

How will I know when my delivery is arriving?

You’ll receive:

  • A dispatch confirmation
  • A delivery update
  • A message from the driver/installer on the day of delivery

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Why are shipping rates different for some products?

Shipping costs depend on:

  • Weight
  • Product category
  • Supplier logistics

Returns and Refunds

Can I return a product after installation?

Installed systems generally cannot be returned unless there is a defect or installation issue.

What if my product arrives damaged?

If your item arrives damaged:

  • Take photos immediately
  • Email support with your order number
  • A replacement or refund will be arranged promptly

What is your return policy?

Most unopened and unused products can be returned within 14 days of delivery, in line with Irish consumer law. Installed or custom products may not be eligible.

How long does it take to receive a refund?

Refunds are typically processed within 5–10 business days after the returned item is inspected. Learn More.

Trusted by homes across Ireland and Northern Ireland

Culligan has been helping people enjoy clean, safe, great-tasting water for over 90 years. We're committed to providing high-quality water solutions backed by expert support and service.

Learn more about Culligan