Corrosion Resistant: Hayward EATB Series include a PVC true union ball valve w/EA electric actuator which comes standard with an all polypropylene housing for superior corrosion resistance. These NEMA 4/4X polypropylene housings can stand up to harsh environmental and corrosive conditions. Best for On/Off Applications: These moderately priced, full feature, high quality package units are the best choice for ball valves up to 2" where a manual override is not required and control options are not needed. Extra Features - No Extra Cost: Hayward EATB Series come standard with a mechanical brake for precise control of the actuation cycle, 115VAC, plus a thermal overload circuit protects the UL-listed motor from burnout and overheating. All models come with a molded in mounting bracket.