Abstract: Fluid dispensers can be provided with a pump bottle that can have a fluid retaining portion, a pump neck that can be engaged with the fluid retaining portion such that the pump neck can be fluid communication with the fluid retaining portion, and a pump head that can be associated with the top portion of the pump neck, where the pump head can be configured to dispense a fluid retained in the fluid retaining portion of the pump bottle. The fluid dispenser can have an adapter ring that can be engaged with the pump neck, where the adapter ring can be selectively movable along a vertical length of the pump neck. The fluid dispenser can have a lock member, where the locking member can be associated with the adapter ring and the locking member can have a first unlocked position and a second locked position.