white cylindrical spa filter cartridge with blue edges and a label featuring text and a cartoon character
Tall cylindrical spa filter cartridge with white pleated material and blue plastic end caps on plain white background
cylindrical spa filter cartridge with white pleated filter material and blue plastic end cap with handle
Spa filter cartridge with pleated white filter material and bright blue circular plastic end cap with a central hole

Unicel 5CH-402 Replacement Spa Filter Cartridge for Del Sol, Sundance & Jacuzzi Premium Spas | 40 Sq. Ft. | 6540-723

Regular price$44.99
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SKU:
5CH-402
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About This Item

The Unicel 5CH-402 is a 5CH Series 40 sq. ft. replacement spa filter cartridge engineered for Del Sol, Sundance, and Jacuzzi Premium spa models originally equipped with OEM part number 6540-723. With 204 pleats of 3 oz. Reemay 2033 filtration media and a 2" male-thread (MPT) bottom connection, it delivers reliable filtration performance as a direct cross-reference replacement.

⚠️ IMPORTANT: Dimensional Difference vs. OEM Original
Per Unicel's cross-reference data, the original OEM cartridge measures 11" OAL × 5-1/2" OD. The Unicel 5CH-402 measures 10 3/4" length × 5-3/16" OD — slightly smaller in both length and outer diameter. This is the documented Unicel replacement for OEM part 6540-723. Measure your existing cartridge before ordering to confirm this is the correct replacement for your unit.

Specifications

Filter Area 40 sq. ft.
Length 10 3/4"
Outer Diameter 5 3/16"
Material 3 oz. Reemay 2033
Pleat Count 204
Top Cap: Bar Handle
Top Cap - Bar Handle
Bottom Cap: 2" Male Thread (MPT)
Bottom Cap - 2 inch Male Thread MPT

Fits Into:

OEM Brand Product Name Part Number Notes
Del Sol Spas Hermosa 6540-723 OEM original: 11" OAL × 5-1/2" OD
Del Sol Spas Redondo 6540-723 OEM original: 11" OAL × 5-1/2" OD
Jacuzzi Premium Del Sol Hermosa 6540-723 OEM original: 11" OAL × 5-1/2" OD
Jacuzzi Premium Del Sol Redondo 6540-723 OEM original: 11" OAL × 5-1/2" OD
Sundance Spas Del Sol Hermosa 6540-723 OEM original: 11" OAL × 5-1/2" OD
Sundance Spas Del Sol Redondo 6540-723 OEM original: 11" OAL × 5-1/2" OD
South Pacific Spas
Tuff Spas Models manufactured after 2008. Verify dimensions before ordering.

(This is not an exhaustive list.)

Pro Tip: Before ordering, measure your existing cartridge's overall length and outer diameter and compare against the 5CH-402 specs (10 3/4" × 5-3/16"). The original OEM part for these spa models measured 11" × 5-1/2" — the 5CH-402 is the documented Unicel cross-reference replacement, but confirming your measurements against both sets of dimensions ensures the right fit every time.

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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.

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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.

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