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Ozone Units - What do they do?
Have you ever wondered what an Ozone unit actually does? if so click the below link to read more about them on our blog page.
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Hot Tub and Spa Filters

Darlly Hot Tub Filters

Filters are vital for the cleanliness of your water as well and the performance and longevity of your hot tub and spa components. We stock the full range of Darlly filters, the name to trust for quality and reliability, and the only manufacturer offering a 1 year guarantee.

Check the dimensions of your filter and search our range using size or code. To filter by size or fittings, please choose from the search options available on this page.

Darlly are the world’s largest replacement filter manufacturer, producing over 7 million filters a year. They pride themselves on innovation, reliability and quality, producing efficient filters that are easy to clean, last monger than other brands and prolong the lifespan of your hot tub and its components. With over 20 years experience, the award winning Darlly filters make keeping your hot tub clean easy.


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C4326 Micropure Filter
  3 in stock, immediate despatch
Aquaspa Replacement Filter
  More than 10 in stock
Lazy Spa Replacement Filter
  1 in stock, immediate despatch

Darlly SC838 | 40022

PMA10 Filter
  More than 10 in stock
Pair Lay-Z-Spa Replacement Filter
  More than 10 in stock
Pair Lay-Z-Spa Replacement Filter 2
  More than 10 in stock
Water Pre Filter
  More than 10 in stock

Darlly SC778

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Hot Tub Filter FAQ's

How often do I need to change my filter?

If you clean your filter regularly and thoroughly, your filter can last up to 2 years, but a minimum of 1 year. We recommends having two filters, one in your system and one prepared so you can thoroughly clean the dirty filter while still enjoying your hot tub.

What will happen if I don’t clean my filter?

The filter is responsible for removing dirt and debris from your water before it gets pumped around your hot tub again. Not cleaning your filter will not only result in dirty water, but it will also affect the performance of your hot tub components.

How often should I clean my filter?

There are different levels of cleaning your filter. You should rinse it about once a week. On a monthly basis you can use a filter cleaner spray to keep it clean. Every three to four months you should give your filter a soak. It’s best to do this when you change the water in your tub. For our range of filter cleaning products, click here.

Useful Links

Filter cleaning products

Hot tub filters - Blog Articles

How to clean hot tub filter