Unicel Replacement Filter Cartridge For 100 Sf Waterway/Coast Spas | C-5396
Unicel
SKU: C-5396
Unicel C-5396 Replacement Filter Cartridge – 100 sq ft
Part # C-5396 — a high-capacity replacement filter cartridge designed for spas and pools that use a 100 sq ft filtration element. This cartridge restores proper water flow, improves clarity, and helps maintain clean, balanced water by capturing fine debris and contaminants.
Key Features
- 100 sq ft of premium polyester filter media for strong dirt-holding capacity.
- Standard size: approximately 5-5/16″ outer diameter × 21-5/16″ length.
- Open-top and open-bottom design with 2-1/8″ inner diameter ports for easy installation.
- High pleat count for extended run time and improved filtration efficiency.
- Durable center core and reinforced end caps designed for long service life in both pool and spa environments.
Typical Applications
This replacement cartridge is commonly used in spa systems, portable hot tubs, and small residential pool filters that require a 100 sq ft element. Replace when the existing cartridge becomes worn, clogged, torn, or unable to maintain proper pressure and water clarity.
Installation & Compatibility Notes
Shut off the pump and release system pressure. Remove the old cartridge from the filter housing, clean the tank thoroughly and inspect the sealing surfaces. Insert the new C-5396 cartridge, ensuring proper alignment and seating. Reassemble the filter, restore circulation, and confirm normal operating pressure.
Why Choose This Cartridge?
The C-5396 offers reliable performance, long-lasting construction and a large filtration surface area, making it an ideal choice for restoring efficient filtration without replacing the entire filter system.
Maintenance Tips
- Clean the cartridge whenever system pressure rises 8–10 psi above the clean starting pressure.
- Rinse thoroughly with a hose and periodically deep-clean using a cartridge-safe solution to remove oils and scale.
- Inspect end caps and pleats regularly for cracks, tears or deformation.
- Consider rotating between two cartridges to prolong lifespan and reduce downtime during cleaning.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
