cylindrical white pool filter cartridge with blue end caps and a label featuring a smiling cartoon filter giving a thumbs up
cylindrical pool filter cartridge with white pleated filter material and blue plastic end caps isolated on white background
cylindrical filter cartridge with bright blue end caps and white pleated filter material inside
Cylindrical pool filter cartridge with blue plastic end cap and white pleated filtration material inside

Unicel 4000 Series 32 sq. ft. Replacement Filter Cartridge | C-4332

Regular price$32.99
/
$9.99 flat shipping on orders under $100.
Unicel Authorized Dealer Full Manufacturer Warranty Support
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SKU:
C-4332
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About This Item

The Unicel 4000 Series C-4332 is a precision-engineered 32 sq. ft. replacement filter cartridge built for pool and spa systems requiring a compact, high-efficiency filtration element. Constructed with 154 pleats of 3 oz. Reemay 2033 polyester media, this cartridge delivers consistent water clarity while providing the dimensional accuracy needed for drop-in replacement across a wide range of OEM filter housings.

Specifications

Filter Area 32 sq. ft.
Length 11 7/8"
Outer Diameter 4 15/16"
Top Inner Diameter 2 1/8"
Bottom Inner Diameter 2 1/8"
Material 3 oz. Reemay 2033
Pleat Count 154
Top Cap: open
Top Cap
Bottom Cap: open
Bottom Cap

Fits Into:

OEM Brand Product Name Part Number Notes
Baker-Hydro Mini-Mite 17-B1151
Martec SC-3500, SC-2200
Sonfarrel 220022, 220032, 220035, 220042
Emerald Spas Select Models
Viking Spas Select Models
Advantage Mfg. Select Models

(This is not an exhaustive list.)

Also known as: C4332

Format: you@example.com

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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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