Refresh your spa or pool water with the Darlly Spa/Pool Replacement Filter Cartridge 60403 (6CH-942) in the 6 x 8.25 inch configuration. With 45 square feet of filtration area, this cartridge is designed to deliver thorough cleaning while fitting standard filter housings, making replacement quick and hassle-free.
This replacement cartridge is built for durability and consistent performance. The 6" outer diameter and 8-1/4" length provide substantial dirt-holding capacity, while the top is open (1-3/4") for easy seating in the canister and the bottom end cap features a 1-1/2" SAE thread for a secure, leak-resistant seal. The pleated media maximizes surface area, trapping fine particulates, oils, and debris before water recirculates back into your spa or pool.
Key specifications
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Filtration area: 45 square feet of filtration surface for efficient cleaning and longer run intervals.
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Dimensions: Outer diameter 6", length 8-1/4".
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Top connection: Top Open 1-3/4" for simple seating in the housing.
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Bottom connection: End cap with 1-1/2" SAE thread for a secure seal.
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Model compatibility: Designed to fit spa and pool filter housings that accommodate 6 x 8.25" cartridges with about 45 sq ft of filtration.
Why this cartridge stands out
Compared to smaller or lower-capacity replacements, the 45 sq ft media area of this cartridge means more dirt capture between cleanings and steadier water quality. The pleated design creates a robust barrier against sand, leaves, body oils, and other contaminants, helping to keep your water clearer with less maintenance.
Ideal uses and who it's for
- Home spa owners replacing worn or degraded filters in hot tub or spa filtration systems.
- Pool owners using cartridge filtration in systems that require a 6 x 8.25" cartridge with 45 sq ft of media.
- Service professionals needing a reliable, drop-in replacement that matches existing housings.
Maintenance tips
- Rinse the cartridge under running water before reinstallation to remove loose debris.
- Inspect O-rings and seals for wear and replace if needed to prevent leaks.
- After installation, run the pump briefly with clean water to prime the filter and remove air pockets.
- Replace based on usage, water chemistry, and debris load; typical cycles range from 1–3 months with regular use.
With the Darlly 60403 replacement cartridge, you gain a dependable, compatible solution that helps maintain crystal-clear water in your spa or pool while simplifying maintenance and ensuring consistent filtration performance.
