The Darlly 25 Sq Ft Replacement Filter Cartridge 42522 (FC-0126 / 4CH-926) is a direct-fit filtration solution for Waterway Bottom spa and pool systems, engineered for reliable cleansing with every cycle.
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Direct-fit compatibility: Designed to fit Waterway Bottom housings without adapters, simplifying upgrades and replacements.
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Teleweir 25 sq ft filtration media: Maximizes debris capture while maintaining strong water flow in a compact cartridge.
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Top handle design: Handling-friendly top facilitates quick removal and easy installation.
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Bottom connection: 2" female SAE thread for a secure, leak-free mounting interface.
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Dimensions: Diameter 4-15/16" and length 13-1/2" to fit standard Waterway Bottom housings.
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Media weight: 3 oz of filtration media delivers efficient filtration without excess bulk.
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Model compatibility: Replaces FC-0126 / 42522 / 4CH-926 (and related numbers like WW817-4025), offering a versatile, familiar replacement.
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Application: Specifically designed for Waterway Bottom filtration systems in spa and pool setups.
With the Teleweir design and 25 sq ft of media, this cartridge holds more dirt per cycle while preserving water flow, helping your spa or pool stay crystal clear between cleanings. The adapter-free, direct-fit installation minimizes downtime and inventory complexity for Waterway Bottom systems, while the sturdy 2" SAE bottom connection ensures a reliable seal. Ideal for spa enthusiasts and pool owners who rely on consistent, easy-to-maintain filtration, this replacement cartridge delivers dependable performance across cycles and is a practical upgrade for common Waterway bottom configurations.
| Application |
Waterway |
| Bottom Physical Dimension |
2" |
| Bottom Style |
Female SAE Thread |
| Diameter |
4-15/16" |
| Length |
13-1/2" |
| Media Type |
3oz |
| Model |
Teleweir 25 sq ft filter |
| Square Footage |
25 sq ft |
| Top Style |
Handle |