Spa Filter
- Darlly Ref: 60403
- Unicel Ref: 6CH-942
- Topology® Ref: 6TP-941 + 6TP-942
- Pleatco Ref: PWW100-ST
- Filbur Ref: FC-0361
Diameter: 154 mm
Length: 210 mm
Top: Open
Bottom: Threaded SAE 1''1/2 (38mm inner diameter / 47mm outer diameter)
 |  |
| Top: Open | Bottom: Threaded SAE |
Spa Filter
- Darlly Ref: 60402
- Unicel Ref: 6CH-941
- Pleatco Ref: PWW100-ST
- Filbur Ref: FC-0360
Diameter: 154 mm
Length: 210 mm
Top: Handle
Bottom: Smooth end, outer diameter 45mm
The filter consists of two parts, this part being the upper part of the filter.
 |  |
| Top: Handle | Bottom: Smooth end smooth |
Compatible with
Alps Spas - Haven spas - Leisurerite - Phoenix spas - Spas Peips - Spaform - Sunbelt Spas - Superior spas - Waterway plastics ... and many other spas
Frequently Asked Questions
Is this PWW100ST filter set compatible with my Alps Spas or Spaform spa?
If you own an Alps Spas, Haven Spas, Spaform, Sunbelt Spas, Superior Spas, or Waterway Plastics spa, this filter set is designed for those systems. Also check whether your current filter is marked with one of these part numbers: Pleatco PWW100-ST, Unicel 6CH-941 or 6CH-942, or Darlly 60402 or 60403. If so, this set is a direct replacement. If you're unsure, use
our filter selection guide to confirm compatibility.
Do the 154 mm diameter and 210 mm length match my current filters?
To confirm compatibility, measure your current filter. It should have an outside diameter of 154 mm (6.1") and a length of 210 mm (8.3"). Also check the end caps: the upper cartridge has a handle, while the lower cartridge features a 1-1/2" SAE threaded connection. If your current filters are identified as Unicel 6CH-941, 6CH-942, Pleatco PWW100-ST, or Darlly 60402/60403, this set is a direct replacement. See our spa filter measuring guide.
Why does this kit include two different filters, an upper and a lower cartridge?
Some spa filtration systems use two complementary filter cartridges: an upper cartridge with a handle and a lower cartridge with a 1-1/2" SAE threaded connection. This kit includes both components—the equivalents of Unicel 6CH-941 and 6CH-942 (or Pleatco 6TP-941 and 6TP-942). Before ordering, make sure your spa uses this two-filter configuration.
Should I clean both filter cartridges regularly to maintain their performance?
Yes. Regular rinsing with fresh water helps extend the life of both cartridges. For a deeper cleaning, use a dedicated spa filter cleaner to remove oils, scale, and debris trapped in the pleats. Browse our selection of spa filter cleaning products.
How often should I replace the PWW100ST filters in this set?
Filter lifespan depends on spa usage, water quality, and how often the cartridges are cleaned. For most spas with regular use, replacing both cartridges once a year is common. Reduced water flow or cloudy water despite proper water treatment are good indicators that it's time for a replacement. Replacing both filters at the same time helps maintain optimal filtration performance.
Can I receive this filter set quickly if I order today?
If the product is in stock, orders placed before 1:00 PM ship the same day. This is especially convenient if your spa is currently in use and you need to replace both filter cartridges without delay.
What if this filter set doesn't fit my spa?
You can return the filters provided they are unused, uninstalled, and in their original packaging. Returns are accepted within 14 days of delivery. For professionals in the spa industry, this period may be extended to 60 days. If you're unsure before ordering, compare your current part numbers with the equivalent Pleatco PWW100-ST, Unicel 6CH-941 or 6CH-942 filter models.
What shipping options are available?
Shipping options depend on the product, your country, and your delivery address. Depending on your order, delivery may be available to your home or to a pickup point. The available shipping methods are displayed in your shopping cart.
How can I track my order?
You will receive email notifications throughout the shipping process, including a tracking link or tracking number once your order has been shipped. You can also track your order from your customer account.
Which payment methods do you accept?
We accept credit and debit cards, PayPal, PayPal Pay in 4, bank transfer, and check. For bank transfer payments, your order will be shipped once the funds have been received.
