Unicel C-2308 Replacement Filter Cartridge | 8 sq. ft. | 9 3/4" x 2 7/8"

Unicel C-2308 Replacement Filter Cartridge | 8 sq. ft. | 9 3/4" x 2 7/8"

Regular price$38.99
/
$9.99 flat shipping on orders under $100.
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SKU:
C-2308
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About This Item

The Unicel C-2308 is an 8 sq. ft. replacement filter cartridge engineered for the high-demand environment of Pentair's Caribe multi-element cluster filter systems. Constructed with 3 oz. Reemay 2033 pleated polyester media and 84 precision pleats, this compact cartridge delivers consistent filtration efficiency and extended media life — critical when dozens of cartridges operate together as a single filtration bank.

⚠️ IMPORTANT: Multiple Cartridges Required for Full Filter Service
This cartridge is used in Pentair's Caribe multi-element filter systems, which require a complete set of cartridges for proper operation. Replacing only some cartridges will compromise overall system performance and water balance across the filter bank.

Required quantities per system:
Caribe 133 — requires 17 cartridges
Caribe 184 — requires 23 cartridges
Caribe 368 — requires 46 cartridges

Add the correct quantity to your cart to complete your full filter service.

Specifications

Filter Area 8 sq. ft.
Length 9 3/4"
Outer Diameter 2 7/8"
Top Inner Diameter 1 1/16"
Bottom Inner Diameter 1 1/16"
Material 3 oz. Reemay 2033
Pleat Count 84
Top Cap: Open
Top Cap
Bottom Cap: Open
Bottom Cap

Fits Into:

OEM Brand Filter System Part Number Notes
Pentair – American Products Caribe 133 57011400 Requires 17 cartridges
Pentair – American Products Caribe 184 57011400 Requires 23 cartridges
Pentair – American Products Caribe 368 57011400 Requires 46 cartridges
Pentair – Rainbow Plastics Dynamic Series 17-2055

(This is not an exhaustive list.)

Also known as: C2308

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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

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