Keep your hot tub water clean, clear, and properly balanced with the ProAqua C-6430 Replacement Filter Cartridge. Designed for use in Watkins®, Hot Spring®, Hot Spot®, and compatible spa systems, this premium 30 sq. ft. filter captures dirt, body oils, hair, and other contaminants before they can affect water quality or equipment performance.
Manufactured with high-quality pleated filtration media, the C-6430 provides efficient water flow while maintaining excellent filtration performance. Regular filter replacement helps improve sanitizer efficiency, reduce stress on pumps and heaters, and extend the life of your spa equipment.
Key Features
✔ 30 square feet of filtration area
✔ Premium pleated filtration media
✔ Captures dirt, oils, and debris
✔ Improves water clarity and circulation
✔ OEM-quality replacement performance
✔ Easy to remove and install
✔ Durable construction for extended filter life
✔ Designed for Watkins and Hot Spring spa systems
Specifications
| Specification |
Details |
| Filter Area |
30 Sq. Ft. |
| Diameter |
5-7/8" |
| Length |
10-1/2" |
| Top Opening |
1-15/16" Open |
| Bottom Opening |
1-15/16" Open |
| Filter Type |
Replacement Cartridge |
| Media Type |
Premium Pleated Filtration Media |
Compatible Spa Brands & Models
This filter is commonly used in:
Hot Spring Spas®
- Select Hot Spring Highlife Series models
- Select Hot Spring Limelight Series models
- Various Hot Spring circulation filter applications
Watkins® Spas
- Watkins 31489 filter applications
- Watkins 71825
- Watkins 73178
- Watkins 73250
Other Compatible Applications
- Hot Spot Spas® (select models)
- Caldera Spas® utilizing Watkins filtration systems
- TidalFit Swim Spas® (select models using PWK30-style filters)
Always verify dimensions and filter style before ordering.
Cross Reference Part Numbers
This filter is compatible with and replaces:
- ProAqua 60301
- Unicel C-6430
- Unicel C-6430RA
- Pleatco PWK30
- Pleatco PWK30-M
- Pleatco PWK30-4
- Filbur FC-3915
- Watkins 31489
- Watkins 71825
- Watkins 73178
- Watkins 73250
- Watkins / Hot Spring N0969601
- Baleen AK-5005
- Aladdin 13004
- PDC510-AFS
- APCC7095
- SD-00704
- SD-01242
- CCP389
Why Replace Your Hot Tub Filter?
Regular filter replacement helps:
- Improve water clarity
- Increase filtration efficiency
- Reduce strain on pumps and heaters
- Improve sanitizer effectiveness
- Enhance water circulation
- Extend the life of spa equipment
For best results, rinse your filter every 2 to 4 weeks and replace it every 12 months, or sooner depending on spa usage and water conditions.
Pro Tip
Keep a spare filter cartridge on hand and rotate filters during deep cleaning. This helps maintain peak filtration performance while extending the life of each cartridge.
