Tall cylindrical pleated pool filter cartridge with blue plastic caps on both ends and a blue and white label on front
cylindrical pool filter cartridge with white pleated fabric and blue plastic end caps on a plain white background
cylindrical white pleated pool filter cartridge with a bright blue plastic end cap and central opening
cylindrical pool filter cartridge with white pleated material and blue plastic end cap on one side

Unicel Replacement Filter Cartridge 60 sq. ft. Jacuzzi Premium J300 & J400 | 6CH-961

Regular price$53.99
/
$9.99 flat shipping on orders under $100.
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SKU:
6CH-961
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About This Item

Unicel 6000 Series 60 sq. ft. Replacement Filter Cartridge delivers precision-fit filtration for Jacuzzi Premium J300 and J400 Series spas. Built with 131 pleats of 3 oz. Reemay 2033 polyester media, this cartridge maximizes surface area for superior water clarity and extended service life compared to lower-pleat alternatives.

⚠️ IMPORTANT: Semi-Circular Handle Not Included
This cartridge requires an injection molded semi-circular handle for installation — the handle is not furnished with this replacement cartridge. In most cases, the existing handle from your old cartridge transfers directly to this replacement. If your handle is damaged or missing, contact Jacuzzi Premium for the correct handle part.

Specifications

Filter Area 60 sq. ft.
Length 15 1/2"
Outer Diameter 6 3/4"
Top Inner Diameter N/A
Bottom Inner Diameter N/A
Material 3 oz. Reemay 2033
Pleat Count 131
Top Cap: open w/ slots
Top Cap
Bottom Cap: 2" SAE thread
Bottom Cap

Fits Into:

OEM Brand Product Name Part Number Notes
Jacuzzi Premium J300 Series 6541-383 Requires injection molded semi-circular handle (not furnished)
Jacuzzi Premium J400 Series 6540-476 Requires injection molded semi-circular handle (not furnished)
Jacuzzi Premium J400 Series 6540-164 Requires injection molded semi-circular handle (not furnished)

(This is not an exhaustive list.)

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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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