Water Softening Resin Filters

Name: Ultra Soft Water Softeners Ltd
SKU: 5ed93c184425g3da
Rating: 5 (241 reviews)

Price range: £20.00 through £56.00 Incl. VAT

Our Water Softening Resin Filters come pre-filled with high quality ion-exchange resin, designed to soften low volumes of water at flow rates of up to 9 litres per minute. Requiring much less space than a water softener these filter cartridges are commonly used for point of use and space-sensitive applications, such as in a catering van to protect an urn or coffee machine from limescale damage. Available in all industry standard sizes including regular (2.5″) and large diameters (4.5″).

Product Features

Pre-filled with high quality water softening resin
Suitable for flow rates up to 9 litres per minute
Great for space-sensitive applications
Prevents limescale build up

Choosing Product Size

Choose a size based on your available space and flow rate requirements. We stock these filter cartridges in all industry standard sizes including regular diameter (2.5″) and large diameter (4.5″) including both 10″ and 20″ lengths. Most standard filter housings are compatible with these filter cartridges, but can be purchased separately if required.

Help & Advice

Need help or advice on which size to choose? No problem, drop us an email, start a live chat or give us a call on 01622 933 853 and we’ll be sure to help.

Water Softening Resin Filters

£20.00 – £56.00 Incl. VAT

Product Size: No selection

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SKU: SO Category: Media Filters Tags: Filter Cartridges, Limescale Filters

WATER SOFTENING RESIN FILTERS

Regenerable Softening Resin

Softening resin is widely used in water treatment applications to produce soft water, reducing water hardness and preventing the formation of limescale. Usually found within a water softener, this type of resin can be regenerated using a strong salt water solution, otherwise known as brine. This regeneration process allows it to continue softening your water, even after becoming saturated with minerals. These water softening resin filters strike a balance between a water softener and a filter cartridge, providing an excellent option for point of use applications (for producing low volumes of soft water on demand). Typical applications include lab testing, reverse osmosis, catering vans, boats and caravans.

How Long Do These Water Softening Resin Filters Last?
The lifespan of the filter depends on your water hardness and usage. Once expended, the resin can either be regenerated with a strong brine solution or replaced. For specific capacity figures please refer to the table below.

Why Choose Our Water Softening Resin Filters?

For point of use and space-sensitive applications
Suitable pre-filter to a reverse osmosis system
Regenerable using a strong brine solution
Produces soft water by ion exchange
Utilises food grade softening resin

Compatible Products:
Filter Cartridge Housings
Water Hardness Test Kit

Size	Flow Rate	Capacity
10″ x 2.5″	2 Litres Per Minute	500 Litres
20″ x 2.5″	3 Litres Per Minute	1,000 Litres
10″ x 4.5″	4 Litres Per Minute	1,250 Litres
20″ x 4.5″	9 Litres Per Minute	2,875 Litres

*Capacity based on a water hardness of 100ppm

High Quality Water Filters

We pride ourselves on a comprehensive range of high quality water filters, for all uses and applications. Can’t find what you’re looking for? Get in touch with a member of our team or browse all of our water filters.

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Additional Information

Suitable For: No selection	Boats & Caravans, Light Commercial Catering, Urns & Coffee Machines Home & Domestic
Product Dimensions: No selection	10” Regular Diameter (2.5" x 10") 20” Regular Diameter (2.5” x 20”) 10” Large Diameter (4.5” x 10”) 20” Large Diameter (4.5” x 20”)
End Cap Configuration: No selection	Double Open Ended (DOE)

     
 
 
      Posted on Google  
  
 
   Pete Cossar 
 7 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Very pleased with the service. There was an issue with the water softener I ordered initially, but then following communications made the replacement process quite pleasant. Happily recommend this company. Thanks to Becky for working with me. Great follow up support 😊😊😊
  
 
     Posted on Google  
  
 
   Michael Fey 
 2 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Very Pleased with the services from the Sales Team
  
 
     Posted on Google  
  
 
   Guy Brennan 
 26 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. First time using this company and product and i wasnt dissappointed. Communication was easy and quick resulted in an easy order and now having fitted the filter i can say its a great product easy to install and appears good quality apart from the four mild steel bracket screws stainless would have been better considering the environment these are fitted. All in all, very pleased and would highly recommend .
  
 
     Posted on Google  
  
 
   Graham Quinn 
 25 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Easy to order and fast delivery
  
 
     Posted on Google  
  
 
   Steve Griggs 
 14 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent local company and genuinely lovely people to deal with. Really helpful and knowledgeable, with great advice about my water softener and the correct salt to use. They even gave me some resin cleaner at no charge, which was a very kind gesture. Fantastic friendly service and I’ll definitely be returning for my salt in future. Highly recommended.
  
 
     Posted on Google  
  
 
   Don Carless 
 7 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service.  Product proved my softener was not working as it should.  I fully serviced it and cleaned with Resin Clean returned to service and it is now working as designed.  Very pleased.
  
 
     Posted on Google  
  
 
   J P 
 27 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. If you're thinking about a water softener then i HIGHLY recommend Ultra Soft Water Softeners Ltd.

Great softeners and exceptional customer service. The water softener I bought needed some adjustments with the installation setup where I supported throughout. The customer service is honestly next level. I had countless calls with Becky Gillett, the Sales Manager, over a period of months to get to the bottom of it. She was incredibly patient with me, staying on the phone and doing video calls to walk me through the programming instructions step-by-step while I changed the settings and ensured all was installed correctly.

All the staff here have been great, but Becky really stuck with me from start to finish to make sure it was sorted and working well. It runs like a dream now.

HIGHLY recommend them!
  
 
     Posted on Google  
  
 
   Chris Collins 
 26 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Easy to order, good prices and delivered on time. What more can you ask for.
  
 
     Posted on Google  
  
 
   John L 
 26 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Good rapid & efficient service
  
 
     Posted on Google  
  
 
   Tony Hybel 
 17 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Easy to order, quick delivery, good communication. Resclean worked a treat; one treatment cycle and soft water is back again from our 12 yr old softener!

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Water Softening Resin Filters

Regenerable Softening Resin

High Quality Water Filters

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Water Softening Resin Filters

Regenerable Softening Resin

High Quality Water Filters

Additional Information

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