Harmsco Cartridge Lifter [39-3/4"] (623) terminals Control dials are useful because

Control dials are useful because they allow the feeder to be adjusted for the intended treatment level rather than running at only one fixed setting

and SP1098 skimmer models and provides a clean finished cover over the skimmer opening

When the deeper support behind the seat starts to fail

Helps correct leaks and worn housing issues

Blue-White chemical pump diaphragm

Harmsco Cartridge Lifter [39-3/4"] (623) terminals Control dials are useful becauseThe Harmsco cartridge lifter is designed for compatible filter applications where cartridge removal or handling needs added support. A cartridge lifter is useful because it helps move or lift the cartridge more safely and conveniently during maintenance, supporting easier service work. This replacement is especially useful when the original lifter is bent, damaged, worn, or missing. Matching the correct 39 3 4 inch size helps preserve intended fit and