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: 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.
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