Waterway 3/8" SB Elbow Style Air Injector [White] (670-2200) jets It protects the motor

It protects the motor

This replacement is especially useful when the original solenoid has become weak

or no longer rotating or sealing correctly

That can make the repair feel more dependable than replacing the heating body alone while continuing to rely on sensor components that may already be part of the problem

Waterway 3/8" SB Elbow Style Air Injector [White] (670-2200) jets It protects the motorThe Waterway 670 2200 elbow style air injector is designed for compatible spa air systems using a 3 8 inch connection size. Elbow style injectors are especially useful in plumbing layouts where direction change at the injector point helps the assembly fit more naturally within the spa shell or equipment routing. This white injector introduces air into the system to support the aerated spa effect users expect, while its elbow design can make it easier