Unicel C-4975 pool filter fits the following filter models:
     Dynamic Series II AND III - Model RTL 75 and RCF 75
     Dynamic Series V - DSC-75
NOTE:  Filter top and bottom ends are open w/2-1/8" inside diameter

Specifications
Unicel C-4975 replaces the following cartridge filters:
     Rainbow pool filter 17-2632 (172632)
     Pentair pool filter R173435

Manufacturer
UNICEL

Sq. Ft.
75

OD
4-15/16"

Length
20-1/8"

Pleat Count
210

Media
3 ounce

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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.