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Part # WC10857S2X

Dimensions 18.25" L x 8.75" W x 8.75" D

Alternate Part #'s PEN177008, PENWC108-57S2X, STA-06-241

Product Description

Sta-Rite® Posi-Flo II PTM70 OEM Cartridge NLA Replaced by the Generic equivalent.  Click the link to view http://www.inyopools.com/Products/06400001004310.htm?Keywords=UHD-SR70

Product Specifications

Filter Model:
Posi-Flo® TX/TXR/PTM 70
Diameter:
8 - 11/16 in.
Length:
18 - 3/16 in.
Top Style:
Open
Top Inside Diameter:
4-3/16"
Bottom Style:
Open
Bottom Inside Diameter:
4-3/16"
Filtration Area:
70 sq. ft.
Media Weight:
4 oz.
Weight:
5 lbs.
OEM #:
WC108-57S2X
Unicel #:
UHD-SR70
Filbur #:
FC-2540
Pleatco #:
PSR70
OEM:
Yes
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?     Asked on 3/26/2019by Inyo Visitor

I need to replace my Sta Rite filter cartridge # WC108-57S2X. The original has a open interior with out a slotted plastic sleeve. The generic replacement has a slotted interior sleeve . Will that slotted sleeve restrict water flow through the cartridge resulting in excess pressure and diminished filtering?
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A  Answered on 3/30/2019 by InyoPools Product Specialist Lennox H.

HI. It will not. You will not see an increase in filter pressure or restricted water flow. 
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