Hot Tub Filter Cartridge for PWW50L, 4CH-949 & FC-0172
Compatibility-led spa replacement filters in a handy 2 pack for cleaner, clearer water
Free UK Delivery
Fast dispatch from our UK warehouse for dependable nationwide delivery
30-Day Peace of Mind
Easy returns if the filter is not the correct compatible match for your spa
2-Pack Convenience
Replace one now and keep a spare cartridge ready for your next maintenance cycle
Multi-Code Compatibility
Designed as a spa replacement filter for FD2007, PWW50L, 4CH-949 and FC-0172 references
Sparepla
£57.76 inc. VAT (£48.13 ex. VAT)
A compatibility-first spa replacement filter 2 pack designed for hot tubs and spas using FD2007, PWW50L, 4CH-949 or FC-0172 reference cartridges. Ideal for keeping water cleaner while keeping a spare on hand for your next change.
Happy Customers
Avg Rating (280+ reviews)
Satisfaction Rate
Loved Across Britain
How to Use
- Turn off power to your hot tub or spa before removing the old cartridge.
- Open the filter housing and take out the used filter.
- Check the old cartridge code or dimensions against FD2007, PWW50L, 4CH-949 or FC-0172 compatibility references.
- Rinse the housing if needed, then insert the new filter securely into place.
- Close the housing and restart the spa system.
- Rinse the cartridge regularly during use and replace when pleats remain discoloured or water flow drops noticeably.
What Our Customers Say
I needed a straight replacement for a worn pww50l filter and this matched up perfectly. Water clarity improved within a day and having the second cartridge in the pack is genuinely useful.
Bought this for our family hot tub after comparing it with a Darlly listing. The compatibility info was much clearer here, and the cartridge slotted in without any fuss.
From a practical point of view, the pleated media is well made and the dimensions were accurate for my 4CH-949 replacement. It is a tidy, reliable option for routine spa maintenance.
Good quality spa replacement filter and fast delivery to Wales. I would have liked the dimensions shown on the front of the pack as well, but the online listing had enough detail for me to confirm the fit.
I usually buy Pleatco-compatible replacements, but this Sparepla 2 pack offered better value and clearer cross-reference details. Worked well as an fd2007 filter replacement in our garden spa.
Used in a holiday-let hot tub where I need a spare ready between guest stays. The two-pack format is the biggest win for me. Packaging was simple rather than fancy, but the filters themselves seem solid.
At Sparepla, we believe replacement parts should be simple to buy and easy to trust. Our range is built for UK households, inflatable spa owners and holiday-let hosts who need the right fit quickly, without trawling through vague listings or confusing model references.
We focus on practical spa essentials with clear compatibility information, so you can match worn cartridges with confidence. By highlighting known replacement codes such as FD2007, PWW50L, 4CH-949 and FC-0172, we help take the uncertainty out of routine hot tub care.
Our approach is straightforward: dependable products, sensible twin-pack value and a premium customer experience from a UK-based retailer. Whether you are maintaining a garden spa at home or keeping guest facilities ready for the weekend, Sparepla is here to help you keep water cleaner with less hassle.
We are proud to serve British direct-to-consumer shoppers with clear guidance, responsive support and a no-nonsense standard of quality. Sparepla is for owners who want compatibility first, performance second to none and a spare cartridge ready when they need it.
Why UK Customers Love Us
Our products are designed and supported in the UK, ensuring superior quality and fast tracked delivery from our British warehouse. We offer free UK delivery on all orders, eco-friendly packaging to reduce carbon footprint, and warm, direct customer service. Every order is backed by a generous 30-day returns policy under the UK Consumer Rights Act 2015 — you are always protected.
Trusted by UK spa owners who want the right fit first time
Frequently Asked Questions
From Our Blog
The Ultimate Guide to Pww50L Filter in the UK
PWW50L Filter Guide for UK Hot Tubs The PWW50L filter is a 50 sq ft hot tub filter cartridge commonly used in UK spas, and it is typically interchangeable with…
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4Ch-949 Filter Explained: A UK Buyer's Guide
The 4ch-949 filter is a hot tub filter cartridge used in many UK spas, and it is commonly interchangeable with PWW50L and FC-0172 filters when the dimensions…
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Fc-0172 Filter Explained: A UK Buyer's Guide
Fc-0172 Filter Explained: A UK Buyer's Guide TL;DR: If you are searching for an fc-0172 filter , you usually need a compatible hot tub filter cartridge also…
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