Unicel Clean & Clear Plus 320 Set Of 4 | C-7470-4
Unicel
SKU: C-7470-4
Unicel C-7470-4 Cartridge Filter Set – 4 Pack, 80 Sq Ft Each (Fits Pentair Clean & Clear Plus 320 / Waterway Crystal Water 325)
The Unicel C-7470-4 is a complete set of four replacement cartridge elements designed for multi-cartridge pool filters that use four matching cartridges. Each cartridge provides 80 sq ft of filtration area (for a combined 320 sq ft when installed as a full set), helping deliver clear water, strong circulation, and longer time between cleanings compared to smaller filter systems.
Key Features
- 4-pack set for multi-element cartridge filter tanks (replaces all cartridges at once)
- 80 sq ft per cartridge (320 sq ft total system area when using all four)
- Open top & open bottom design for standpipe-style canisters
- 3" inside diameter openings on both ends for proper fit on compatible standpipes
- Durable pleated media for strong debris capture and consistent flow when cleaned regularly
Specifications (Each Cartridge)
- Model: C-7470 (set: C-7470-4)
- Filtration Area: 80 sq ft
- Outside Diameter: 7"
- Length: 20"
- Top End Cap: Open
- Top Inside Diameter: 3"
- Bottom End Cap: Open
- Bottom Inside Diameter: 3"
- Pleat Count: 170
Compatible Filter Applications
- Pentair / Pac-Fab: Clean & Clear Plus 320 (CCP320) – uses (4) cartridges
- Waterway: Crystal Water 325 sq ft – uses (4) cartridges
Replaces / Cross References
- Pentair: R173573
- Pac-Fab / Pentair: 178580
- Pleatco: PCC80
- Filbur: FC-1976 (and equivalent cross-references)
- Waterway: 817-0081
When to Replace
- Pleats are torn, frayed, or separating from the end caps
- Cartridges won’t clean up well after a deep soak and thorough rinse
- Filter pressure rises quickly after cleaning or flow remains restricted
- End caps are cracked/warped or the core is collapsing
Related Products
- Unicel C-7470 (Single Cartridge)
- Pentair Clean & Clear Plus 320 Tank O-Rings & Gaskets
- Cartridge Filter Cleaner
- Cartridge Cleaning Wands
- Filter Pressure Gauges
- Silicone Pool Lube (for O-rings)
Maintenance Tips
- Clean cartridges when pressure rises about 8–10 PSI above your clean starting pressure (or when flow drops).
- Rinse between pleats from top to bottom and rotate the cartridge as you clean for a more thorough rinse.
- Deep clean periodically to remove oils; if scale is present, degrease first, then treat for scale and rinse thoroughly.
- Inspect and lightly lubricate tank O-rings during service to help maintain a consistent seal and prevent air leaks.
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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