The Unicel C_8413 replacement cartridge delivers 125_sq_ft of high-efficiency filtration tailored for Sta_Rite PXC_125 and Waterway Pro_Clean_125 systems. Engineered with premium spun_bonded polyester media, it features 148 pleats and robust construction for exceptional dirt-holding and extended service life. Measuring approximately 8_15/16_ in diameter and 28_3/16_ in length, with 4_ open end caps and molded gaskets, itÕs designed for a perfect drop-in fit with the OEM part 25230_0125S. The C_8413 ensures crystal-clear water, seamless installation, and superior hydraulic performanceÑmaking it an ideal replacement for maintaining peak filter efficiency.

• 125_Sq_Ft Optimized Filtration Surface: Generous filtration area with 148 pleats maximizes dirt capture and reduces maintenance frequency.

• Premium Polyester Media: Constructed from durable spun-bonded polyester that resists chemicals and withstands repeated cleanings for reliable longevity.

• Exact OEM Fit for PXC_125 Systems: Matches original Sta_Rite 25230_0125S specifications, ensuring a smooth, tool-free swap with precision fit.

• Built for Flow and Efficiency: Thoughtful dimensions (8_15/16_ _ 28_3/16_) and design maintain strong water flow while keeping pump energy consumption low.

• Dual 4_ Gasketed Open Ends: Equipped with top and bottom open 4_ molded gaskets, enabling quick alignment and secure sealing within filter housings.

• Length:Ê28_3/16_
• Outside Diameter:Ê8_15/16_
• Inside Diameter:Ê4"

Need help with the Unicel C-8413 125 sq ft cartridge for Sta-Rite PXC-125 or Waterway Pro Clean 125 filters? This section explains installation, compatibility, and troubleshooting, plus advice for confirming the part in store.

Installing the C-8413 Cartridge

The C-8413 uses 4_ open ends with molded gaskets for a tool-free drop-in fit. Proper alignment ensures consistent sealing and reliable filtration.

How do I install the Unicel C-8413 cartridge in a Sta-Rite PXC-125 filter?

Why wonÕt the cartridge seat properly inside the housing?

Can I buy the C-8413 replacement cartridge in store today?

Do I need to replace the filter lid O-ring when swapping cartridges?

Confirming Compatibility With OEM 25230-0125S

The C-8413 matches OEM part 25230-0125S, fitting Sta-Rite PXC-125 and Waterway Pro Clean 125 systems. Checking your filter label avoids mismatches.

Does the C-8413 cartridge directly replace Sta-Rite 25230-0125S?

How do I confirm in store that my filter needs this 125 sq ft model?

Can store staff compare my old filter to the Unicel C-8413?

Will this cartridge also fit Waterway Pro Clean 125 housings?

Troubleshooting Filtration Problems

Cloudy water, short cycles, or sand-like debris may indicate a clogged or worn filter. Replacing with the C-8413 restores clean, clear water.

Why is my pool still cloudy after installing the C-8413 filter?

How often should I clean or replace this 125 sq ft cartridge?

What should I check if pressure rises quickly after installation?

Can I bring my old cartridge in store to confirm the right size?