Product Information: Boospa is gradually replacing its Topology filter range with the new Cleonia filters, developed by Boospa. Depending on available stock, you may receive either version. The delivered filter may differ slightly in the color of the base and the label, but it remains exactly the same in terms of reference, dimensions, and compatibility.
Set of 4 screw-in filters 40508 / 4CH-949 - 212 pleat version - 5m²
The set of 4 screw-in filters 40508 / 4CH-949 is a practical and economical solution to keep your spa in good working condition. You save money, time, and ensure clean water to fully enjoy your relaxation space.
Compatible references:
- Rising Dragon: RD50 / RD800-2110
- Pleatco: PWW50L
- Unicel: 4CH-949
- Filbur: FC-0172
- Darlly: SC757 / 40508
- Waterway: 817-4050
- Angel Spa: FIL-PRB50-AVIS
- Centurion: SC757
- Sunrise Spas: R9026104
- Be Spa: FLT-33
- Blue Lagoon: BLSF-12
- Alford & Lynch: AL0506
Have peace of mind with a set of 4 filters 40508 / 4CH-949
With 4 spare filters on hand, you are always ready for your spa maintenance. No more waiting to replace your filter cartridge. Indeed, changing them frequently ensures cleaner and clearer water as well as better water circulation. This translates into optimal performance for your spa, from heat distribution to the effectiveness of maintenance products.
Less effort, more time to relax with cartridges 40508 / 4CH-949
Spa filters need regular cleaning. By having multiple filters, you can space out cleanings more, meaning less maintenance effort.
This also helps reduce individual wear on each of them and can extend the lifespan of your entire set of filters.
Dimensions:
- Height (mm): 325
- Outer Diameter (mm): 127
- Top of Filter: Handle
- Bottom of Filter: Threaded - 48 mm internal diameter
- Number of Pleats: 212
 |  |
| Top: Handle | Bottom: Threaded |
Our recommendations for optimal maintenance of your filter 40508 / SC757:
- Clean your filter at least once a month, or more frequently with heavy use.
- Replace the filter every 3 to 6 months, depending on water quality and spa usage frequency.
- Always have a spare filter on hand to avoid any interruption in spa use.
- Follow the manufacturer's recommendations for filter maintenance and replacement.
Available Options

Filter 40508 is also available in BlueWater filtration version. The material used in making this filter has been specially treated to provide antimicrobial action. The filtration capacity is thus enhanced for superior water quality compared to a standard filter.