Abstract: A container device useful for selling nozzle heads for an irrigation system having various vertical sprinklers is disclosed. The container device has a tubular cylinder with an attachment end, an opposite open end and an exterior surface. The tubular cylinder is made of plastic and the attachment end is attached to a nozzle head. The nozzle head has a cylindrical base which mates with the attachment end of the tubular cylinder via a contact fit or screw-in threads. A debris screen for use with the nozzle head is fit within the tubular cylinder. The combination tubular cylinder and nozzle head allows inexpensive and simple packaging for the nozzle heads. The container device may be put on retail display with a gravity feed dispenser allowing dispensing of single containers for a consumer.

Abstract: An adaptable controller for controlling variable numbers of switches is disclosed. Specifically the controller is useful in an irrigation system having a number of water sprinklers whose operation may be controlled by user-defined programs. The system has a processor unit, an interface unit and a number of add-on units. Switches for actuating electrically-operated devices such as sprinklers are located on the interface unit and the add-on units. The controller allows a user to enter operating parameters relating to the switches in the form of the user-defined programs. The processor is capable of ascertaining the number of switches on the interface unit and the add-on units and limiting the number of switches selected and controlled by the user-defined programs.