cylindrical pool filter cartridge with orange top and bottom edges and white pleated filtration material with labeled front
cylindrical pool filter cartridge with white pleated material banded in middle and orange caps on top and bottom
cylindrical pool filter cartridge with white pleated material and bright orange circular end caps against white background
cylindrical pool filter cartridge with bright red outer rims and pleated white filter paper inside

Unicel 9000 Series Replacement Filter Cartridge 50 sq. ft. | C-9405

4.6 ★★★★ (36) ▾
Regular price$67.99
/
$9.99 flat shipping on orders under $100.
Unicel Authorized Dealer Full Manufacturer Warranty Support
No Hassle Returns 30 Days Paid Returns
SKU:
C-9405
  • Poolaroo Promise

    • Fast Shipping — Ships in 1–2 Business Days
    • 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
    • Powered By People Who Care - No Faceless Conglomerate

About This Item

The Unicel C-9405 is a 9000 Series 50 sq. ft. replacement filter cartridge engineered for Pentair's Predator 50 and Clean & Clear 50 single-cartridge filter systems. With 217 pleats of 4 oz. Reemay 2040 polyester media and open ends on both top and bottom, this cartridge delivers precise dimensional fit and consistent filtration performance. Note: This cartridge features distinctive orange end caps and has no center core.

⚠️ IMPORTANT: Orange End Caps — Verify Before Ordering
The C-9405 is identified by its orange end caps — a Unicel visual marker specific to this cartridge. If your existing cartridge has a different end cap color or style, verify compatibility by matching dimensions: 8 9/16" length × 10 1/16" OD × 6" open ends (both top and bottom) before ordering.

Specifications

Filter Area 50 sq. ft.
Length 8 9/16"
Outer Diameter 10 1/16"
Top Inner Diameter 6"
Bottom Inner Diameter 6"
Material 4 oz. Reemay 2040
Pleat Count 217
Top Cap: open
Top Cap
Bottom Cap: open
Bottom Cap

Note from Unicel: This product has no center core and orange end caps.

Fits into:

OEM Brand Product Name Replaces Part # Notes
Pentair Clean & Clear CC50 R173213 Single-cartridge system; 1 cartridge per service
Pentair Predator 50 R173213 Single-cartridge system; 1 cartridge per service
Pentair – American Products Predator 50 59054000 Legacy American Products branding
Pentair – Pac-Fab Clean and Clear 50 59054000 Legacy Pac-Fab branding

(This is not an exhaustive list.)

Also known as: C9405

Format: you@example.com

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Unicel Filter Cartridges and DE Grids

About Unicel Filter Cartridges and DE Grids

The "Gold Standard" of Replacement Cartridges
For over 50 years, Unicel (Meissner Mfg.) has been the professional's choice for restoring pool water clarity. While generic "knock-off" filters often use cheap, fuzzy fabric that clogs quickly, Unicel uses genuine Reemay® Filtration Media. This patented synthetic fiber features a unique trilobal shape that traps significantly more dirt and oils without choking your pump's water flow. Based in California, Unicel doesn't just copy filter dimensions; they engineer them to strict Original Equipment Manufacturer (OEM) specifications. This ensures a "lock-tight" fit in your filter tank, preventing debris from bypassing the system and returning to your pool.

Why We Trust Unicel Filter Cartridges and DE Grids
Genuine Reemay® Media: Uses continuous trilobal fibers to capture microscopic debris without restricting water flow.

Precision "Exact Fit": Engineered to match your tank's original specifications for a 100% leak-free seal.

Made in the USA: Manufactured in California with heavy-duty urethane end caps that resist cracking under pressure.

Longer Lifespan: Sharp, rigid pleats resist collapsing during cleaning, meaning you buy fewer replacements over time.

More about Pool and Spa Filter Cartridges

Complete Your Pool Care Routine

Essential Pairing
Filter Cleaning Chemicals for All Types of Pool & Spa Filters

Using a specialized cleaner like FilterWash helps release deeply embedded oils and minerals that standard rinsing leaves behind.

Shop Filter Cleaning Chemicals for All Types of Pool & Spa Filters
Highly Recommended
Pool and Spa Plumbing Lubricants

Every time you open your filter tank, you must lubricate the O-ring to prevent dangerous leaks and ensure a watertight seal.

Shop Pool and Spa Plumbing Lubricants
Pro Tip: Don't Forget
Pool Test Kits and Water Analysis Tools

Balanced water pH prevents calcium scale from hardening your filter fabric and ruining your new cartridges.

Shop Pool Test Kits and Water Analysis Tools

Recently viewed