Pentair Sta-Rite System 3 21"/25" Adapter Bushing (24900-0504Z) safety The silver finish adds brightness

The silver finish adds brightness and contrast to the Emerald Cut design

That makes it a practical option for both new plumbing and replacement work

A fitting like this matters because it helps maintain the relationship between the shell opening

High-output spa motors deliver strong circulation and jet performance

Pentair Sta-Rite System 3 21"/25" Adapter Bushing (24900-0504Z) safety The silver finish adds brightnessThis 21 inch 25 inch adapter bushing is used in Sta Rite System 3 filter assemblies where the correct transition between internal or external components is needed. A properly matched bushing helps maintain alignment and reduces stress on adjoining parts. It is especially useful when an older fitting has become brittle, damaged, or difficult to seal after repeated filter service. Designed for compatible System 3 filter sizes Helps adapt and align