Canadian Spa UK
50 FT² OPEN FILTER - Antimicrobial Replacement Filter for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Darlly SC706, RTL-50, 03FIL1600 or R173434
50 FT² OPEN FILTER - Antimicrobial Replacement Filter for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Darlly SC706, RTL-50, 03FIL1600 or R173434
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1x50ft² Open Antimicrobial Filter
Increase the cleaning power of your spa with a Canadian Spa Company Antimicrobial spa filter! These filters are infused with antimicrobial protection to inhibit the growth of bacteria upon the cartridge and extend the filter's lifecycle. For additional protection, silver ion technology is added into the end caps and fabric of this filter, making it the most advanced filter cartridge available. Spend less time cleaning your filters and more time enjoying your spa!
Filter should be changed every 4-6 months or when showing signs of wear. For best results, clean your filters regularly using Canadian Spa Filter Free Cleaner Solution
Filter Size: 336 x 127 x 55 mm. (13 1/4" x 5" x 2 1/8”)
Features
- Antimicrobial material fights and inhibits the growth of bacteria in your hot tub
- Silver Ion infused plastic reduces bacteria build up in or around filter
- Injection moulded cores
- Less frequent replacement schedule
- Cleaner water overall
- Easy to clean pleats
- Open top and bottom hole - 2-1/8 inch
- 219 pleats
Filters are a replaceable consumable, so they sit outside the spa’s standard warranty. Antimicrobial cartridges should be replaced roughly every 4–6 months (4–6 weeks for portable spa cartridges) and rinsed regularly in between. Questions about fit or coverage? Call 01293 824 094 or raise a support ticket.

Buying and support guide
We supply the 50 FT² OPEN FILTER - Antimicrobial Replacement Filter for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Darlly SC706, RTL-50, 03FIL1600 or R173434 with clear specs and UK support. Before you order, check it suits your spa model, size, connector type, power supply and access. This helps you avoid delays and returns.
Replacing a part? Match it to your spa's model and year where you can. For pumps, control packs, heaters, jets, covers, filters, topsides and plumbing, check the part number and connection type. Compare delivery time, warranty and support as well as price.
Running costs matter as much as the price you pay. Energy use, insulation, cover condition, filters and water care all affect long-term value. Replacing worn parts early and keeping the water moving and filtered can save on repairs.
Looking for a whole new tub rather than a part? Compare hot tubs, swim spas and saunas by seating, hydrotherapy, who will use it and the space you have.
Helpful links
- Hot tub parts and replacements
- Filters and water care
- Spa chemicals
- Spa accessories
- Replacement hot tub covers
- Hot tubs for sale
- Swim spas
- Home saunas
- Hot tub servicing and repairs
Quick questions
How do I check this part fits my spa?
Check the model name, model year, part number and connector style. If you're not sure, contact our support team before you buy.
Can you help with fitting?
Yes. For many products we can guide you through replacement and servicing, and tell you when a qualified technician is the better option.
Will this improve performance?
The right replacement part can improve reliability, water flow, heating and everyday performance.