Pools and Hot Tubs

10 Best hot tub filters

Check our comparative guide of best hot tub filters. If you want to know what people buy the most when they search: “hot tub filters”, you are on the right page. In the ranking below, you will find products that most consumers prefer at the moment.

Our ranking table includes products mainly from Amazon due to the wide range they offer, but it is possible to have links to Argos, Homebase, B&Q, Wickes, and lesser-known gardening websites in the UK.

Which are the best hot tub filters?


Castle Hot Tubs Bestway Filter Cartridge VI for Lay-Z-Spa Miami, Vegas, Monaco, Palm Springs (2 x Twin Packs, 4 Filters)

  • Another TOP QUALITY product from Catle Hot Tub

Bestway Lay-Z-Spa Hot Tub Filter Cartridge VI for All Lay-Z-Spa Models - 6 x Twin Pack (12 Filters)

  • Official Lay-Z-Spa filter cartridges keep your water safe and clean (12 filters in total)
  • High quality cartridges filter out unwanted dirt and grime whilst optimising pump performance
  • Cartridges can be easily cleaned and reused thanks to their high quality material blend
  • Helps protect pump and heater from dirt which could cause damage and reduce its lifespan
  • Compatible with all Lay-Z-Spa models

Lay-Z-Spa Hot Tub Filter Cartridge VI for All Lay-Z-Spa Models - 1 x Twin Pack (2 Filters)

  • Official Lay-Z-Spa filter cartridges keep your water safe and clean (two filters in total)
  • High quality cartridges filter out unwanted dirt and grime whilst optimising pump performance
  • Cartridges can be easily cleaned and reused thanks to their high quality material blend
  • Helps protect pump and heater from dirt which could cause damage and reduce its lifespan
  • Compatible with all Lay-Z-Spa models

AquaHouse AH-P94 Hot Tub Filter compatible to replace PWW50P3 PWW50, 6CH-940, FC-0359, 817-0050, 25252, 378902, 03FIL1400, 60401, 8550

  • AquaHouse AH-P94 Hot Tub filter cartridge compatible to replace PWW50P3, PWW50, 6CH-940, FC-0359, 817-0050, 25252, 378902, 03FIL1400, 60401, 8550 and any other equivalent version of the above filters.
  • Please check that your existing filter reference or dimensions match this filter to confirm compatibility. Durable and washable filter with filter life up to 12-24 months / replace as required.
  • Compatible with certain models of hot tubs by: Aegean Spas, Alps Spas, Appllo Spas, Artesian Spas, Barrier Reef Spas, Caldera Spas, Canadian Spas, Catalina Spas, Clear Water Spas, D M Industries Spas, dakota Spas, Dynasty Spas, Elite Spas, Garden Leisure, Gulf Coast Spas, Hydro Spa, Hydropool, Iber Spa, Insparations, Jazzi Spas
  • Compatible with certain models of hot tubs by: Leisure Bay Spas, Pacific Spa, Passion Spas, Sapphire Spas, Southwest Spas, Spa Crest, Spaform, SpaServe, Sunbelt Spas, Thermo Spa, Trade Price, Tuff Spas, US Spas, Viking Spas, Vision Hot Tubs, Vita Spas.
  • Please note this is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only.

Standard Filter for Blue Whale spa - Fits Many Hot Tub Models

  • This filter fits many hot tubs and spas, see list below.
  • Outside Diameter 4 15/16" (12.5cm)
  • Hole Diameter 2 1/8" (5.4cm)
  • Filter Body Length 13 5/16" (33.8cm)
  • Top Quality Product from Castle Hot Tubs

POOLPURE Replacement Bestway Spa Filter for Type VI SPA, Hot Tub Filter Replaces 90352E, Lay-Z Spa, Set of 4

  • 【Compatibility Details】Dimensions: Length 3 1/8"", Diameter 4 1/4"", Openings:2"" Top & Bottom. Designed to fit Type VI 90352E. Compatible with Lay-Z-Spa, Intex and other inflatable hot tub filter. Note: This is a compatible replacement part.Original manufacturers' names and part numbers are referenced for compatibility. POOLPURE is an independent brand.
  • 【Superior Filtration】Our innovative ""Dirt-Locking"" technology ensures the fabric captures more contaminants than standard filters. Efficiently remove hair, leaves, dust, sediment, sand, and more. Revel in pristine water during your spa sessions.
  • 【Effortless Cleaning】 The Trilobal Fabric Structure of the filter facilitates easy release of impurities during cleaning, ensuring the filter feels renewed after each wash. For optimal performance, it's recommended to clean the cartridges once a month.
  • 【Powerful Filtration Capacity】 Our unique trilobal filtration fabric offers an enhanced surface area, optimizing back pressure throughout your filtration system. This ensures consistently clean, fresh, and clear water for your pool or spa.
  • 【Extended Lifespan】The unique Trilobal Filtration Fabric Structure allows for capturing a larger volume of contaminants. It's also designed for easy cleaning and maintenance. We're dedicated to offering top-quality products at an affordable price.

POOLPURE Spa Filter for Hot Tub Compatible with Pleatco PRB50-IN, PRB501N, Unicel C-4950, Filbur FC-2390, Dynamic 03FIL1600, Pentair R173434, 50 sq. ft. Spa Filter Cartridge 5 X 13

  • 🥇【Safety Material】Poolpure filter is tested and certified by IAPMO against NSF/ANSI 50 for safe and eco-friendly material.
  • 【Replacement Models】Replacement for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Darlly SC706, RTL-50, 03FIL1600, R173434.
  • 【Product Detail】 Filtration Area: 50 Sq. feet;Length: 13 5/16"(33.8cm) ; Outside Diameter: 5"(12.5cm); Top Hole: 2 1/8"(5.4cm) Open; Bottom Hole: 2 1/8"(5.4cm) Open.
  • 【Strong and Durable】 The whole filter includes the break-resistant end cap, big-flow ABS inner core, widened band and thick filtration fabric to form a strong and durable body. The filter can resist high pressure and the corrosion of high-capacity chlorine.
  • 【Powerful Filtration Performance】Innovated "Dirt-Locking" technology make the fabric contain much more contaminants than common fabric. The filter can high efficiently reduce hair, leaves, dust, sediment, sand. Enjoy leisure time in your spa and hot tub.

Alford & Lynch Hot Tub & Spa Filter Unicel c4950 / C-4950 50' Spa Cartridge Pleatco PRB50-IN Darlly 40506 for Arctic, Beachcomber, Canadian, Hydropool & Jacuzzi Spas (2)

  • QUALITY - Alford & Lynch Replacement Hot Tub Filter & Spa Filters Cartridges are tested and certified by IAPMO to standard NSF/ANSI 50. This quality testing ensures each filter is manufactured to the highest global standard.
  • PERFORMANCE - Manufactured with high density micro membrane fabric ensures Alford & Lynch Hot Tub & Spa filters maintain long-term strength and performance. The filter housing is manufactured with a high flow core which supports the filter structure ultimately providing excellent
  • TRUSTED - This Hot Tub / Spa Filter Cartridge contains 50 sq. ft. of washable filtration area which efficiently removes hair, dust, sediment, sand and dirt which builds up during every day use. 30 Day Money Back, it's very simple, if you are not happy with the quality of filtration and overall performance we will refund your purchase.
  • DIMENSIONS - Diameter 5" (127mm) - Length 13 5/16" (338mm) - Top Hole 2 1/8" (54mm) - Filter Material Area 50 sq. ft. (For Maximum Filtration)
  • COMPATIBLE WITH EXAMPLE - Aber Hot Tubs | Accent Spas | Acryx-Maax Spas | Alps Spas | American Spas | Apollo Spas | Aqua Mystic Spas | Aqua Tech Spas | Arcadia Spas | Arizona Pacific Spas | Artesian Spas | Baja Spas | Beachcomber | Blue Falls | Blue Pacific Spas | Bullfrog Spas | Cal Spas | Charisma Spas| Clipper Spas | Coast Mountain Spas | Coast Spas | Coleman Spas | Columbia Spas | Crystal Waters Spas | Diamond Back Spas | Discovery Spas | Hydropool Industries | Hydro Spa| Millennium Spas.

Hot Tub Filter Unicel c4950 / C-4950 50' Spa Cartridge Pleatco PRB501N Darlly 40506 for Arctic, Beachcomber, Canadian, Hydropool & Jacuzzi Spas

  • Length: ...........33.80 cm Outside Diameter: ............12.50 cm
  • Top Finish: .......5.4cm (2") Hole Bottom Finish: .....5.4cm (2") Hole
  • 50sq ft (for 25sq ft Use SC704)
  • Genuine REEMAY 4oz Media - Industry Standard for Filter Media
  • For Many Many UK Spas - ONE YEAR GUARANTEE

Bestway Hot Tub Filter Cartridge VI - For All Lay-Z Spa Models Hawaii Miami Paris Vegas Monaco | 6 x Twin Pack (12 Filters) | Use For Pool Cleaning - Long-Lasting, Easy Installation, High Performance

  • STAY CLEAN - Maintaining clean and safe water in your Lay-Z-Spa is essential for a comfortable and enjoyable spa experience. These official lay z spa filter cartridges are specifically designed to fit your spa and come in a pack of 12 for long-lasting use
  • HIGH QUALITY - Keep your spa water crystal clear and hygienic with our official lazy spa filters for hot tub cartridges. Made with top-grade materials, these high-performance cartridges effectively filter out dirt and grime, maintaining optimal pump performance for a relaxing spa experience
  • LONG LASTING - Efficiently remove impurities and prolong the lifespan of your spa pump with our durable and reusable hot tub filters cartridge that can be easily cleaned, specifically designed for optimal performance in your Lay-Z-Spa hot tub
  • HIGH PERFORMANCE - Maintaining your spa's water cleanliness and pump performance with regular replacement of these high-quality hot tub filters laz-y-spa cartridges. It extends the lifespan of your pump and heater by preventing dirt buildup, ensuring your spa is always ready for use
  • COMPATIBLE WITH ALL MODELS - Ensure your Lay-Z-Spa hot tub stays in top condition with these official filter cartridges, compatible with all models.

Top brands hot tub filters – Bestselling and preferred by consumers in the UK

Our comparison of the top 10 products offers you the following benefits:

  • After a thorough inspection of the products, you will find a reasonable price!
  • When visiting the seller’s official website, you can read reviews from customers who bought the product!
  • This way, you can find the best product quickly and conveniently, thanks to the tidy table with quick access to the seller!
  • The links you will find in the table are always only to trusted companies!
  • These companies guarantee satisfaction with the purchase. They also facilitate the easy return or replacement in case of an issue with the product!

There aren’t many people in the UK who don’t have access to the Internet. And almost everyone uses it to do their research and check a few reviews before making their purchase. That’s why we at buyforgarden.co.uk want you to make the right purchase decision and get the best quality for the price you pay.

Here you can find the best-selling products from online stores in the UK. Many customers who have bought them have appreciated them well because they are happy with the purchase.

How to Clean your Hot Tub Filters

Comparison table

In the table, you will find a selection of the brands sold in stores such as Argos, B&Q, Homebase or Wickes. Besides being the best sellers, they are also the best rated compared to similar products in the same category.

On our page, you have the opportunity to compare different products from different categories. Through reviews and comments from other buyers, we can provide you with a lot of helpful information and help you find the best-selling product.

Here you will find a list of brands, the best products and a useful description for each product.

The list of products is updated daily, thus providing up-to-date prices and the most important information. This allows you to compare products and make great choices optimally.

Customer reviews help you make quick conclusions about quality, transport, delivery times and more.

If you find the price of a particular product in the table, rest assured that the information is updated regularly.

In addition to comparing the opinions of the diggers, you can also search for reviews published on other websites on the web. No matter what review you are looking for, you will indeed find the information you need.

How to choose the best hot tub filters?

We have compiled a list of criteria that will help you make the best choice. It will also protect you from making bad decisions and big headaches, and buying problems.

Get your knowledge of buyers, friends and the Internet. Before you buy the products, you can be more informed and know all the best brands. For this purpose, read the sellers’ opinion, don’t forget to check both positive and negative comments.

How do people rate hot tub filters?

It has to be said that people can rate hot tub filters very well, but only if the product is worth it. As we said, you don’t just have to see decorative panels for a garden with a good rating and place an order. But having 5 stars doesn’t mean that this is your product. Of course, the amount of evaluations is also very important. Depending on the product you are looking to buy, this suggests a good quality product.

Always look at the number of different ratings. The better hot tub filters, the more positive will be the opinions and information about it.

Of course, with only a few reviews doesn’t mean that the product isn’t worth buying. It may just be a new model that hasn’t been on the market long enough. Here you need to look and check in more detail. Companies like Amazon, Argos, Homebase and B&Q offer an excellent opportunity to check all the reviews left days, months, even years ago. Testing is also possible, but in the following text, we will talk about our purchase guide.

What is the price of a good product?

You wouldn’t refuse to buy the best product at the best possible price. Of course, this also applies to the purchase of this product. Everything should always be affordable and not cause additional costs, but quality comes at a price.

Choosing a cheap product often turns out to be the more expensive option. That is why we strive to show the different prices for each item in the comparison table. With each product we show you, you will always find the current price, although this may vary depending on shipping costs and product variations.

Our advice is to be reasonable with your budget; the cheap one catches the eye but often doesn’t last long enough. Buying a good quality product will make you happier in the long run.

How was the comparison made?

The user experience offers us different opinions. If buyers or consumers, at first glance, misjudge the product, it means that they didn’t like it at all because the size, shape or even colour wasn’t suitable for them. However, these so-called 1-star reviews often contain only the frustration that the user has had.

Maybe they just made a bad purchase, and it just wasn’t suitable for their ideas. To avoid this, we always recommend that you read the reviews carefully. If not, go to your local Argos, B&Q or Homebase if you have this item in stock. There you can take a closer look and form an opinion. You will need to follow our advice and even talk to a consultant who can help you further in your wintering decision.

In the comparison table, there are also many ratings with 5 stars for excellent product quality. These customer reviews are a sign that they are pleased with their choice. Take a look at their reviews; you will find something about the quality of the product.

Ask questions

Before you buy hot tub filters, you need to clarify all the questions you have in advance. Comments from other buyers will help you, but you can also research forums on the subject or ask a direct question in Amazon, Argos or B&Q. Are there any other things to keep in mind besides the product details listed? Is the colour correct, as seen in the small image in the online store?

These are all questions that you, as a user, will surely ask yourself.


Naturally, manufacturers are striving to make a high turnover with their products. The more famous the brand, the better the products. But of course, many small and unknown brands offer good quality.

Here you need to pay attention to the additional purchase criteria.

Finally, of course, the price is also decisive. If the price isn’t simply proportional to the quality, it is advisable to look for another product.

With all this information, we hope you have found what you are looking for.

We believe that gardening is not just a hobby but a way of life. It has numerous benefits for our physical and mental well-being and provides a connection to the natural world. Through our articles, we aim to instill a sense of joy and fulfillment in your gardening endeavors, encouraging you to embark on this rewarding journey and embrace the wonders of nature right in your own backyard.