Waterway Top Flow Air Injector [3/8" Elbow Style] [White Escutcheon] (670-2300) spafilters A shaft seal is a

A shaft seal is a small part with a major responsibility

while the 5-scallop gray face supports a more finished and coordinated appearance

Designed for compatible applications

Roto 5-point scallop design in black

A focused replacement like this is especially useful when the surrounding filter body remains serviceable and the weakness is isolated to the catcher itself

Waterway Top Flow Air Injector [3/8" Elbow Style] [White Escutcheon] (670-2300) spafilters A shaft seal is aThe Waterway 670 2300 Top Flow air injector is a 3 8 inch elbow style injector designed for compatible spa systems that need both reliable air delivery and a clean finished look. Its elbow style body is helpful in installations where plumbing direction matters, while the white escutcheon keeps the visible surface detail bright and coordinated with lighter spa finishes. This injector helps introduce air into the system to create the bubbling and