Got a question?  Send a text or email.  Same day or next day shipping for most orders. Weekend orders should ship on Monday or Tuesday.  Everything is IN STOCK unless otherwise marked as Out of Stock.

Unicel UNICEL C-4326 Pentair/Rainbow 25 sq. ft. pool filter cartridge UNICEL C-4326 Rainbow pool filter.. Product #: c-4326 Regular price: $18.99 $18.99

UNICEL C-4326 Pentair/Rainbow 25 sq. ft. pool filter cartridge

Brand: Unicel
Product Code: c-4326


Unicel C-4326 fits the following Pentair/Rainbow filter models:
     Dynamic Series I - RDC 25
     Dynamic Series II and III - RTL/RCF 25
     Dynamic Series IV - DFM, DFML 25

Unicel C-4326 replaces the following filter cartridges:
     Rainbow filter 17-2327, 172327, or R172327
     Pentair filter R173429


Sq. Ft.



Pleat Count

3 ounce

Looking for other unicel pool filters?

Additional Information:
Maintain your water clarity and keep your water clean with a Unicel replacement filter element.  Unicel as well as the OEM filter company's use a spunbonded, 100 percent polyester material called Reemay as their filter medium.  Reemay filter fabric is an FDA approved material for milk filtration and is a white material.  Some low end manufacturers are using a yellowish material to reduce costs; this is also reducing quality and durability.  The Unicel replacement filter elements are designed to the performance standards of the original filter manufacturer.  To maximize the life of your filter cartridges and to save on shipping it is recommended to purchase two filters and alternate two sets of cartridges when cleaning.