Pentair Star Filter Top with Knob, Fits ST40/50, Black, 191500
No. 7 Image Shown 191500 Pentair Polymeric Star DE Filter Tank Top with Bump Knob and Pressure Gauge Air Bleeder Assembly - Fits Pac Fab (Pentair) Star DE ST40 and ST50 Sizes Only. Does Not Fit ST80, See Pn 191509. 191500 Can also be found on Schematic Diagram in our parts department.