Unicel Replacement Filter Cartridge 200 sf Waterway Pro Clean/C1900 | C-8420
Unicel
SKU: C-8420
Unicel C-8420 Replacement Filter Cartridge
Part Number: C-8420
Description
A high-capacity replacement cartridge offering approximately 200 sq ft of filtration media, designed for superior debris capture and extended filter run times in residential pool systems.
Compatibility & Fitment
- Fits filter tanks that specify the C-8420 cartridge or equivalent geometry (approx. 8-15/16″ outer diameter × 28-3/16″ length with open 4″ end caps).
- Ideal when the existing cartridge shows high pressure, reduced flow, media tearing or collapse, or when extended filtration performance is desired.
Features & Specifications
- Filtration area: ~200 sq ft of media.
- Construction: Pleated polyester media for durability and effectiveness.
- Dimensions: Outer diameter approx. 8-15/16″; Length approx. 28-3/16″; Open both ends with molded gasket.
- Media rating: Fine particle capture to support clearer water and longer filter cycles.
Installation Notes
Shut off the pump and relieve system pressure. Open the filter tank and remove the old cartridge element. Clean the tank interior and inspect gaskets/O-rings for wear. Install the new C-8420 cartridge, ensure proper seating and alignment, reassemble the filter, restore circulation and monitor pressure drop to confirm proper installation.
Maintenance Tip
Inspect the cartridge annually or when you observe increased pressure or reduced flow. Rinse the cartridge and consider a cleaner soak if needed. Replace the cartridge if rinsing no longer restores acceptable performance, media is damaged, or the pleats are collapsed.
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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