Unicel Replacement Filter Cartridge for 125 sf Sundance Spas | C-8326
Unicel
SKU: C-8326
Unicel C-8326 Filter Cartridge
Part Number: C-8326
Description
A high-quality replacement spa filter cartridge rated at 125 sq ft, featuring around 199 pleats of 3-oz polyester media. Designed for robust performance, durability, and better water flow in spa filtration systems.
Compatibility & Fitment
- Fits many spa systems originally equipped with the Unicel C-8326 cartridge.
- Use when the existing cartridge shows reduced flow, high back-pressure, dark media, or repeated cleaning has ceased to restore performance.
- Drop-in replacement compatible with systems specifying part number C-8326 or equivalent geometry.
Features & Specifications
- Filtration area: approx. 125 sq ft.
- Outer diameter: approx. 8 7/16″.
- Length: approx. 19″.
- Top end: 1½″ male slip fitting; Bottom end: open 2½″ bevel-edge (varies by model).
- Media: 3 oz basis polyester for high dirt holding capacity and durability.
Installation Notes
Turn off the pump and isolate system pressure. Open the spa filter housing, remove the old cartridge, clean out debris and inspect the housing and O-ring seal. Install the new C-8326 cartridge making sure it is fully seated and oriented correctly. Reassemble the housing, restore system flow, and monitor pressure to confirm return to normal operating range.
Maintenance Tip
Rinse the cartridge monthly and inspect the media and pleats for wear or collapse. If cleaning no longer restores acceptable flow or pressure readings remain high, replace the cartridge to maintain clear water and efficient system operation.
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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