Abstract: A sprinkler head cage or cover is provided (which prevents inadvertent actuation of a sprinkler head without significant reduction in sprinkler head fire suppression capability), having an enlarged opening for receiving a variety of different sprinkler head sizes and/or configurations, with a slidably mounted yoke for engaging a sprinkler head, having a camming surface therein for directing alignment of the sprinkler head within the cage as the camming surface is moved along a portion of the sprinkler head. The yoke can provide a positive fit and/or location for the sprinkler head within the cage where the camming surface directs the yoke into engagement with opposing surfaces of the sprinkler head sufficient to restrict motion of the sprinkler head with respect to the cage.