Unicel Replacement Filter Cartridge 25 sf Front Load Jacuzzi | C-5601
Unicel
SKU: C-5601
Unicel C-5601 Filter Cartridge – 25 sq ft
Part Number: C-5601
Description
A high-performance replacement cartridge filter element rated at 25 sq ft of filtration area designed for front-load hot tub/spa and small pool systems. Engineered for durability with heavy-duty polyester media and optimized pleat count to deliver efficient filtration and longer service intervals.
Compatibility & Fitment
- Fits systems requiring a cartridge with approximately 5 11/16″ (≈ 144 mm) outer diameter, 10 3/8″ (≈ 264 mm) length, closed top with loop handle and open bottom with ~2 1/8″ (≈ 54 mm) inner diameter.
- Ideal when the existing cartridge shows reduced flow, elevated system pressure, collapsed pleats or repeated cleaning no longer restores performance.
- Direct replacement for installations specifying part number C-5601 or equivalent geometry cartridges.
Features & Specifications
- Filtration area: ~25 sq ft.
- Outer diameter: ~5 11/16″ (≈ 144 mm).
- Length: ~10 3/8″ (≈ 264 mm).
- Top end cap: closed, with loop handle for easy removal.
- Bottom end cap: open, inner diameter ~2 1/8″ (≈ 54 mm).
- Media: heavy-duty polyester fabric with approximately 100 pleats for enhanced dirt holding capacity.
Installation Notes
Shut off the pump and relieve system pressure if applicable. Open the filter housing, remove the old cartridge element, and clean out debris and sludge. Insert the new C-5601 cartridge, ensuring proper orientation and full seating in the housing. Reassemble the filter, restore circulation, and check the system pressure for normal operating range.
Maintenance Tip
Rinse the cartridge at least monthly to maintain performance. If cleaning no longer restores flow, or pressure remains elevated for longer than usual after cleaning, replace the cartridge with the C-5601 to maintain water clarity and system efficiency.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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