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Unicel C-9478 – 150 sq ft Cartridge Filter Element
Product Overview
The Unicel C-9478 is a high-capacity replacement filter cartridge designed for spa and pool filtration systems requiring a 150 sq ft element. Its pleated media provides efficient dirt and debris removal while maintaining strong water flow.
Key Features
- 150 sq ft of pleated filter media for effective, extended filtration.
- Durable, chemical-resistant construction with molded end caps.
- Open top and bottom design for maximum water flow.
- High-efficiency media captures fine debris and helps maintain clear water.
Technical Specifications
- Part Number: C-9478
- Media Area: 150 sq ft
- Outside Diameter: Approximately 9-15/16″
- Length: Approximately 24″
- Top Inner Diameter: Approximately 5-13/16″
- Bottom Inner Diameter: Approximately 6-1/16″
Applications & Compatibility
This cartridge replaces 150 sq ft elements originally used in compatible spa and pool filtration systems. It is typically used in filter housings designed for large-capacity cartridges. Always verify the original cartridge dimensions and filter housing specification before ordering.
Installation Instructions
- Turn off the pump and relieve pressure from the filter system.
- Remove the tank lid or clamp and take out the old cartridge.
- Rinse the filter tank and inspect sealing surfaces.
- Insert the new C-9478 cartridge, ensuring proper seating in the top and bottom mounts.
- Reassemble the tank, start the system, and confirm proper flow and operating pressure.
Troubleshooting
- High filter pressure: Check for clogged plumbing, closed valves, or a dirty cartridge; clean or replace as needed.
- Poor water clarity: Confirm correct cartridge installation, inspect for damaged pleats or worn end caps.
- Leaks at tank lid: Verify lid O-ring condition, proper seating, and secure clamp tightening.
Maintenance Tip
Rinse the cartridge regularly using a hose nozzle to remove trapped debris. Deep clean with a cartridge cleaner as needed, and replace the cartridge when pleats collapse, media becomes worn, or cleaning no longer restores performance.
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