The spring-loaded pop-up sprinkler head with quarter pattern spray nozzle, with its standard plastic cap and long lasting, durable construction, offers convenience, ease and value. This medium area sprinkler head includes a plastic nozzle with an adjustment screw for easy flow and radius adjustment. A drop-in filter helps prevent a plugged nozzle. A stainless steel retraction spring and a wiper seal to keep out sand and.. See full description for further details