Pools, Hot Tubs & Spas · Comparison
Intex PureSpa Filter Cartridge Twin Pack 29001, Replacement Spa Filters for Bubble, Greywood and Jet Massage Hot Tubs vs Bestway Filter Cartridge VI for Lay-Z-Spa Hot Tubs: Which Pool Pumps & Filters Is Better?
By the Nest & Yard editorial teamUpdated 2026-08-113 min read
Our pick: the Bestway Filter Cartridge VI for Lay-Z-Spa Hot Tubs — the best Pool Pumps & Filters we tested, from £7.99.
Choosing the right filter cartridge is crucial for keeping your hot tub water sparkling clean and your spa experience relaxing. The Intex PureSpa Filter Cartridge Twin Pack offers a slightly higher price point – £9.98 – backed by an impressive 15,416 reviews, while the Bestway Filter Cartridge VI, priced at £7.99 and with 6,751 ratings, provides a more budget-friendly alternative for Lay-Z-Spa owners. This comparison focuses on evaluating which filter best suits your needs and budget, considering the popularity of each product within the Intex and Bestway ranges.
See the full range in Pool Pumps & Filters.
| Intex PureSpa Filter Cartridge Twin Pack 29001, Replacement Spa Filters for Bubble, Greywood and Jet Massage Hot Tubs | Bestway Filter Cartridge VI for Lay-Z-Spa Hot Tubs | |
|---|---|---|
| Price | Unavailable | £7.99↓ Lowest price |
| Rating | Rated 4.6 out of 5 stars (15,416) ↑ Highest rated | Rated 4.6 out of 5 stars (6,751) ↑ Highest rated |
| Brand | Intex | Bestway |
| Price tier | Budget | Budget |
#1 Pick
Intex PureSpa Filter Cartridge Twin Pack 29001, Replacement Spa Filters for Bubble, Greywood and Jet Massage Hot TubsCurrently unavailable
Pros
- Genuine Intex Type S1 replacement fits Bubble, Greywood and Jet spas
- Twin pack keeps a spare on hand for quicker changeovers
- One of the best-reviewed spa accessories on Amazon UK
Cons
- Only compatible with select Intex PureSpa models
#2 Pick
Bestway Filter Cartridge VI for Lay-Z-Spa Hot Tubs£7.99
Pros
- Direct-fit replacement for Lay-Z-Spa Miami, Vegas, Monaco and more
- Traps dirt and debris to keep spa water visibly clearer
- One of the best-selling spa filter cartridges on Amazon UK
Cons
- Needs replacing roughly every 2 weeks with regular use
FAQ
What size filter cartridge does the Intex 29001 fit?
The Intex PureSpa Filter Cartridge Twin Pack (29001) is designed specifically for use with Intex Bubble, Greywood and Jet Massage Hot Tubs. It measures 115mm x 115mm x 65mm, ensuring a correct fit and optimal performance within these models.
Are Intex filters made from durable materials?
Intex filters typically use PVC (polyvinyl chloride) for the main cartridge body. While this is cost-effective, it’s important to note that PVC can degrade over time with exposure to chlorine and UV light – regular replacement is advised.
How much do Intex PureSpa and Bestway filter cartridges generally cost?
Replacement Intex filters typically range from £15 to £30 depending on the retailer and any ongoing promotions. Bestway filters tend to be slightly cheaper, usually between £12 and £25.
How often should I replace my pool filter cartridge?
For regular use in a hot tub, you’ll likely need to replace your filter every 3-6 months. If you notice reduced water flow or increased cloudiness, it's time for a new one.
What maintenance is required for Intex filters?
Before installing a new cartridge, always clean the filter housing thoroughly with warm water and mild detergent. Rinse completely to remove any residue before inserting the fresh cartridge.
Are there any specific safety regulations I should be aware of when changing my pool filter?
Always disconnect the power supply to your hot tub before attempting any maintenance or filter changes. Refer to your hot tub’s manual for detailed safety instructions.
How do Intex filters compare to Bestway filters in terms of flow rate?
Generally, Intex PureSpa filters are known for providing a slightly higher flow rate compared to Bestway VI filters, ensuring quicker water circulation and faster heat distribution within the hot tub.
Do I need to consider seasonal changes when replacing my pool filter?
Yes, during peak season (summer), you'll likely use your hot tub more frequently, requiring more frequent filter replacements. Consider purchasing extra cartridges for longer periods of use.
What’s the difference between the Intex 29001 and other Intex filters?
The 29001 is a specifically sized replacement cartridge designed to work with the older Greywood, Bubble and Jet Massage hot tubs. Newer models may require different size cartridges.
Can I use any filter cartridge in my Bestway Lay-Z-Spa?
No, the Bestway Filter Cartridge VI (and similar) is specifically designed for the Lay-Z-Spa range of hot tubs only. Using a different sized or type of filter can damage your spa and void your warranty.
In depth
When evaluating pool pumps and filters for hot tubs, we consider factors such as efficiency, ease of installation, maintenance requirements, and compatibility with the specific model of your hot tub. The Intex PureSpa Filter Cartridge Twin Pack 29001 and Bestway Filter Cartridge VI are both designed to fit into different hot tub brands but have distinct features that cater to varying needs.
For UK shoppers, climate plays a significant role in choosing pool pumps and filters. Given the temperate yet changeable weather conditions, it’s crucial that your system can handle fluctuating temperatures without causing issues such as ice blockage or excessive water loss through evaporation. Both models are designed with these factors in mind but may perform differently depending on your specific hot tub's location and usage patterns.
Typical UK home and garden sizes also influence the choice of pool pumps and filters. Larger gardens might require more powerful systems to maintain optimal water circulation, whereas smaller spaces may benefit from quieter, less intrusive options. It’s important to consider not just the physical dimensions but also the layout when deciding which pump or filter is best for your outdoor space.
Regulations in the UK regarding pool pumps and filters are minimalistic, primarily focusing on safety standards such as electrical certification and material safety. However, local by-laws might have specific requirements that you should check before installation. For instance, if you plan to use a hot tub in an area with strict regulations about water quality or noise levels, it’s essential to ensure your chosen pump and filter comply.
Price points for pool pumps and filters can broadly be categorized into budget, mid-range, and premium tiers. Budget options often come with basic features but may lack longevity, while premium models offer advanced technologies at a higher cost. The Intex PureSpa Filter Cartridge Twin Pack 29001 is generally considered a budget-friendly option that still performs well in terms of filtration efficiency and ease of use. On the other hand, the Bestway Filter Cartridge VI tends to be more versatile and can offer better value for money with its advanced filter technology.
A common mistake UK buyers make when choosing pool pumps and filters is not considering their compatibility with existing hot tub models or systems. It’s crucial to verify that any pump or filter you buy will fit your specific hot tub without needing extensive modifications, which could potentially void warranties or cause operational issues. Additionally, overlooking the maintenance requirements can lead to higher long-term costs as regular servicing might be necessary for some models.
In conclusion, when selecting pool pumps and filters for your hot tub in the UK, consider factors like climate, home size, local regulations, price tiers, and compatibility with your existing system. By carefully evaluating these aspects, you can ensure that your choice of pump and filter not only meets current needs but also provides reliable performance for years to come.
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-11.