Cylindrical pool filter cartridge with blue end caps and a label featuring a cartoon filter mascot giving a thumbs up
cylindrical pool filter cartridge with white pleated material and blue end caps standing upright on white background
Cylindrical pool filter cartridge with blue end caps and pleated white filter material visible through the central hole
Cylindrical pool filter cartridge with bright blue end caps and perforated inner cylinder on white background

Unicel Replacement Filter Cartridge 35 sf Rainbow | C-4335

Regular price$31.99
/
$9.99 flat shipping on orders under $100.
Unicel Authorized Dealer Full Manufacturer Warranty Support
No Hassle Returns 30 Days Paid Returns
SKU:
C-4335
  • Poolaroo Promise

    • Fast Shipping — Ships in 1–2 Business Days
    • 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
    • Powered By People Who Care - No Faceless Conglomerate

About This Item

Unicel 4000 Series 35 sq. ft. Replacement Filter Cartridge is the replacement cartridge. It offers filtration and better water clarity. More cartridge pleats mean improved filter capacity. The polyester cartridge lasts longer than others.

Specifications

Filter Area 35 sq. ft.
Length 9 1/4"
Outer Diameter 4 15/16"
Top Inner Diameter 2 1/8"
Bottom Inner Diameter 2 1/8"
Material 3 oz. Reemay 2033
Pleat Count 219
Top Cap: open
Top Cap
Bottom Cap: open
Bottom Cap

Fits into:

OEM Brand Product Name Part Number
Aber Hot Tubs (Canada) - 03FIL1300
Belize Spas - -
Bullfrog Spas - -
Caldera Spas - 74148
Clearwater Spas - -
Coast Mountain Spas (Canada) - -
Columbia Spas - -
Crystal Waters Spas (Canada) - -
Custom Molded Products EZ Twist Top Mount Skim 25393
Custom Molded Products Top Load Pressure 25393
Custom Molded Products Top Mount Skim 25393
Emerald Spas - -
Great Lakes Home & Resort - -
Gulf Coast Spas - -
Hawkeye Spas - -
Hydro Pool Industries - -
Hydro Spa - -
Infinity Spas - TN - -
Moose Mountain Spas (Canada) - -
Orca Bay Spas - 3501
Pentair Dynamic Series IV - DFM,DFML R173431
Pentair - Rainbow Plastics Dynamic Series IV - DFM,DFML 17-2482
Phoenix Spas - -
Premium Leisure - -
Rec Warehouse - 303557
Sun Coast Spas - -
Sun Ray Spas (Canada) - -
Sundance Spas Tacoma 680 6000-136
Sunrise Spas - -
Waterway Plastics Top load (in-line) 35 sq.ft. 817-3501
Wind River Spas - -
(This is not an exhaustive list.)

Also known as: C4335

Format: you@example.com

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

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

Recently viewed