Harmsco Lid [TF, 9", Stainless Steel] (776) valvekits and this Balboa DuraJet DJ

and this Balboa DuraJet DJ Series seal plate is designed for compatible applications where the original plate has worn

and an integrated 10-tablet brominator with 2 inch plumbing compatibility

and better aligned with how the filter was intended to function

3 inch slip x 3 inch slip x 3 inch slip connection

and this Maytronics Dolphin pool cleaner version uses the 9980200 reference

Harmsco Lid [TF, 9", Stainless Steel] (776) valvekits and this Balboa DuraJet DJThe Harmsco lid is designed for compatible TF filter applications where the top cover component needs replacement. A lid is useful because it helps close and protect the filter housing, supporting cleaner assembly and more dependable operation of the filter system. This replacement is especially useful when the original lid is dented, damaged, corroded, or missing. Matching the correct 9 inch stainless steel TF design helps preserve intended fit and