Harmsco Top Plate [TF, 9"] (779) dowcorning or bonded plumbing work is

or bonded plumbing work is involved

CPB loop-type rope clamp for compatible 3/4 inch rope applications

OEM Pentair IntelliChem fitting component

and this Pleatco version uses the PWK45-O-4-XP reference

Harmsco Top Plate [TF, 9"] (779) dowcorning or bonded plumbing work isThe Harmsco top plate is designed for compatible TF filter applications where the upper plate component needs replacement. A top plate is useful because it helps support the upper section of the filter assembly, contributing to cleaner internal alignment and more dependable operation. This replacement is especially useful when the original top plate is cracked, warped, damaged, or worn. Matching the correct 9 inch TF design helps preserve intended fit