Fits the 60 square foot models of the following D.E. filters: 
Sta-Rite SwimRite 60 D.E. filter (8 required)
Premier Atlas 60 D.E. filter (8 required)

Note: Collar has a single notch and is covered by a white adapter.  Length is measure from collar notch to opposite end of grid.

Specifications
This is a universal replacement part by Unicel # FG-1060.

Manufacturer
Unicel

Sq. Ft.
60

Width
10-3/4"

Length
31-3/4"