Cylindrical white pool filter cartridge with blue end caps and a label featuring text and a cartoon filter character giving a thumbs up
Cylindrical white pleated filter cartridge with blue plastic end caps and a white rope loop at the top
Cylindrical pool filter cartridge with blue end cap and white pleated filter material inside
cylindrical pool filter cartridge with bright blue plastic end caps and white pleated filtration material

Unicel Replacement Filter Cartridge 25 sq. ft. Jacuzzi SF25 Skim Filter | C-5601

Regular price$28.99
/
$9.99 flat shipping on orders under $100.
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SKU:
C-5601
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About This Item

The Unicel C-5601 is a 5000 Series 25 sq. ft. replacement filter cartridge engineered for Jacuzzi front-load skim filter systems and a range of compatible spa brands. Built with 3 oz. Reemay 2033 spunbond polyester media across 100 precision pleats, it delivers consistent water clarity and reliable flow performance over its full service life.

⚠️ IMPORTANT: Verify Your Top Cap Style Before Ordering
The C-5601 features a closed top cap with string loop handle. Apollo Spas and Seven Seas spa owners: confirm your current filter has a closed top with a string loop — some models in these brands use open-top variants. An incorrect top cap style will not seat properly in your filter canister.

Specifications

Filter Area 25 sq. ft.
Length 10 3/8"
Outer Diameter 5 11/16"
Top Inner Diameter N/A
Bottom Inner Diameter 2 1/8"
Material 3 oz. Reemay 2033
Pleat Count 100
Top Cap: closed w/ string loop
Top Cap
Bottom Cap: open
Bottom Cap

Fits into:

OEM Brand Product Name Replaces Part # Notes
Apollo Spas Closed top required — verify cap style before ordering
Gatsby Spas
Jacuzzi Brothers SF25 Skim Filter 43-2954-01-R Single cartridge per filter service
Jacuzzi Whirlpool Bath Aero, Alexa, Arrow Plus, Caressa, Corsica, Dectra, Lazer II, Lexus LC, Lexus Plus, Meridian II, Palio, Palio Plus, Polara, Quantum, Quantum Plus, Razza, Santina, Santina Plus, Solaris, Solaris Plus, Tirage, Tirage Plus, Vectra, Vectra II, Venterra, 380 6199000 Single cartridge per filter service
Safari Spas
Seven Seas Closed top required — verify cap style before ordering

(This is not an exhaustive list.)

Also known as: C5601

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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