Pentair Rainbow Automatic Feeder 320 Spa Chamber (R172037) transformers or no longer seating properly

or no longer seating properly in the strainer housing

Match the shape

and summer backyard entertaining

Supports proper internal filter assembly

Adapter pieces like this are useful when the reel structure depends on a specific insert-style connection to maintain proper fit

Pentair Rainbow Automatic Feeder 320 Spa Chamber (R172037) transformers or no longer seating properlyReliable pool equipment depends on small parts staying sealed, aligned, and secure. The Rainbow Automatic Feeder 320 Spa Chamber is a Pentair Rainbow replacement for chemical feeder service, helping helps maintain controlled sanitizer delivery. In feeder service, correctly matched small parts help manage sanitizer flow, reduce nuisance leaks, and keep maintenance more predictable. Matches compatible equipment applications that reference part number