Abstract: A pop-up sprinkler includes a base member positionable above a ground surface and a sprinkler head having a substantially cylindrical conduit provided with a proximal end portion in fluid communication with a water supply source. The sprinkler head further has a distal end portion having a plurality of tapered apertures randomly spaced thereabout for receiving a first array of water. The distal end portion further has a slot formed therein for defining a ledge along a select portion of the conduit. The sprinkler further includes a plurality of diverters slidably positionable within the slot. The plurality of diverters include a plurality of flange portions for stopping the plurality of diverters from being raised beyond a predetermined position. The ledge portion receives the plurality of flange portions so that the plurality of diverters can be effectively supported at non-operating positions.