Unicel Replacement Filter Cartridge 30 sf Micro Filter | C-7330
Unicel
SKU: C-7330
Unicel C-7330 Spa Filter Cartridge – 30 Sq Ft (Open Top & Bottom, 7" OD x 7-1/4" Length)
The Unicel C-7330 is a replacement 30 sq ft pleated spa filter cartridge designed for select hot tub and spa filtration systems that use a short, wide cartridge with open ends. It captures fine debris to help keep water clear and supports strong flow when cleaned regularly.
Key Features
- 30 sq ft filtration area for effective debris capture and steady circulation
- Open top & open bottom design for compatible standpipe/canister setups
- Durable pleated media and rigid core built for repeated cleanings
- Common replacement when the original cartridge is torn, flattened, or won’t clean up well
Specifications
- Part Number: C-7330
- Filtration Area: 30 sq ft
- Outside Diameter: 7"
- Length: 7-1/4"
- Top End Cap: Open
- Top Inside Diameter: 4-1/8" (open with step)
- Bottom End Cap: Open
- Bottom Inside Diameter: 4-1/8" (open with step)
- Pleat Count (typical): 265
Replaces / Cross References
- Pleatco: PMA30-2002-R
- Filbur: FC-1003
- Common Application Reference: Master Spas “EP-Cylinder” / 30 sq ft cylinder (older style) (verify by measurements)
When to Replace
- Pleats are torn, frayed, or separating from end caps
- Cartridge stays restrictive or pressure/flow issues continue after thorough cleaning
- End caps are cracked/warped or the core is collapsing
- Water stays dull/cloudy despite balanced chemistry and routine maintenance
Related Products
- Spa Cartridge Filter Cleaner
- Cartridge Cleaning Wands
- Spa Water Test Strips
- Fine Debris Pre-Filters (Skimmer Socks / Filter Bags)
- Spa Scale Remover (for calcium buildup)
Maintenance Tips
- Rinse the cartridge on a regular schedule (often weekly for heavy use) to prevent restriction and keep jets flowing strong.
- Deep clean every 3–6 weeks (or as needed) with a cartridge cleaner to remove oils and fine debris; rinse thoroughly before reinstalling.
- If scale is present, degrease first, then use a scale remover; rinse completely before returning the filter to service.
- Consider rotating between two cartridges (one in use, one drying after cleaning) to extend service life and improve performance.
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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