Raypak 266A/267A Stack Adapter (010331F) brettaqualine the button sends an air

the button sends an air signal through tubing to trigger the connected control

A volute back is one of the structural parts that helps a pump wet end feel properly assembled and supported

Supports cleaner and more dependable system control

That can help preserve alignment

Raypak 266A/267A Stack Adapter (010331F) brettaqualine the button sends an airThe Raypak stack adapter is designed for compatible 266A and 267A heater applications where the supported vent transition component needs replacement. A stack adapter is useful because it helps connect the heater to the intended vent path, supporting cleaner exhaust handling and more accurate assembly fit. This replacement is especially useful when the original adapter is damaged, corroded, or no longer dependable. Matching the correct stack adapter