Abstract: At least one aspect is directed to a device to configure a fire sprinkler. The device can have an elongated member. The elongated member can have an open end, an opposing closed end, and a body extending laterally therebetween. The open end can receive a portion of a fire sprinkler. The closed end can have a main aperture. The main aperture can receive a portion of a ratcheting socket wrench drive. The closed end can have at least one surrounding aperture. The surrounding aperture can be positioned apart from the main aperture to define a solid partition therebetween. The solid partition can have non-uniform thickness between the main aperture and the at least one surrounding aperture.

Abstract: A concealed sprinkler includes a body that defines an outlet, a seal that seals the outlet, an activation element coupled with the seal, a housing that defines a chamber around the activation element, a cover plate removably coupled with the housing, and a wall coupled with or extending from the cover plate to direct air flow to the activation element. The activation element changes from a first state to a second state responsive to a fire condition to allow the seal to be displaced from the outlet. The cover plate is removably coupled with the housing such that a duration of time between decoupling of the cover plate from the housing responsive to the fire condition and changing of the activation element from the first state to the second state responsive to the fire condition is less than a threshold duration of time.