45 Sq. Ft. Sunrans Spa Filter Cartridge – Crystal-Clear Water, Effortless Maintenance
Upgrade your hot tub experience with the 45 Sq. Ft. Sunrans Spa Filter Cartridge, engineered for crystal-clear water and easy upkeep. Specifically designed to fit popular Sunrans models including 809C, 8174, 8173, 8171, and 8102B, this cartridge ensures performance you can trust.
Featuring a durable 1 3/4" OD threaded end and a compact build (8 5/16" length × 5 3/4" width), it installs securely in minutes. With 45 sq. ft. of premium filtration surface area, it captures fine particles and debris to keep your water fresh and sparkling every soak.
Technical Specifications
| Compatible Models |
Sunrans 809C, 8174, 8173, 8171, 8102B (and others) |
| Filtration Area |
45 sq. ft. |
| Connection |
1 3/4" OD threaded end |
| Dimensions |
8 5/16" length × 5 3/4" width |
| Lifespan |
≈12 months (up to 24 months with rotation & proper cleaning) |
| Model Reference |
6CH-940X replacement filter |
Features
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Perfect Fit: Designed for Sunrans models 809C, 8174, 8173, 8171, 8102B, and more.
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High-Capacity Filtration: 45 sq. ft. of surface area for cleaner, clearer water.
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Easy Install: 1 3/4" OD threaded connection for a tight, leak-free fit.
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Compact Design: 8 5/16" × 5 3/4", ideal for spa filter housings.
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Durable Build: Long-lasting construction withstands multiple cleanings.
Maintenance & Replacement Cycle
- 🧼 Rinse weekly with a hose to remove surface debris.
- 🧽 Deep clean monthly with a spa filter cleaning solution (e.g. SpaMarvel Filter Cleaner or Summer Smiles Klean Filter).
- 🔄 Replace every 12 months, or sooner if water flow decreases or water stays cloudy. With proper care and a spare cartridge rotation, lifespan can extend up to 24 months.
- ⚡ Pro Tip: Keep a second set of filters on hand and rotate them — one in use, one being cleaned.
Why Choose This Filter?
This isn’t just a replacement part — it’s a performance upgrade. The 6CH-940X cartridge is built for maximum clarity, hassle-free installs, and long-term durability. By maintaining your filter properly, you’ll enjoy cleaner water, lower maintenance, and longer equipment life — for the perfect soak, every time.
