Apparatus and associated methods relate to a cover assembly having a plurality of ribs integrally formed within an actuator body envelope to increase the resilience of the actuator body envelope against high-pressure water cleaning. In an illustrative example, the actuator body envelope defines an actuator body chamber while an actuator envelope integrally formed with the actuator body envelope defines an actuator chamber. The actuator chamber and the actuator body chamber may adapt to receive an actuator via an insertion aperture at a proximal end of the body envelope. In some implementations, the plurality of ribs may advantageously increase the service life of the cover assembly.