Releasable locking assembly for sprinkler valve units
Resilient sprinkler riser
Retaining cover and sealing assembly for pop-up sprinklers
Retractable irrigation apparatus and method
Retractable spray head for irrigation system
Retractable telescoping fire sprinkler
Retractable telescoping fire sprinkler
Retracting agricultural irrigation sprinkler
Revolving lawn sprinkler
Riser assembly for use with fluid sprinkler
Riser for an irrigation sprinkler
Riser or pop-up irrigation sprinkler
Riser tube with slotted ratchet gear for pop-up irrigation...
Roof cooling system
Roof mounted evaporative cooling system
Rotary drive sprinkler
Rotary drive sprinkler
Rotary drive sprinkler
Rotary nozzle assembly having insertable rotatable nozzle disc
Rotary sprinkler arc adjustment