Rain Bird's 1800 Series is the #1 commercial-grade irrigation spray head brand in the world. The 1800 Series offers reliable, versatile, heavy-duty materials for watering shrubs, small lawns and irregularly shaped planting areas. Precision spray heads and nozzles customize your watering system to cover virtually any configuration lawn or garden - not the sidewalk or driveway! The 1800 Series offers Rain Bird's patented pop-up mechanism for out-of-sight retraction into the lawn when not in operation, full and partial circle coverage and infinite pattern adjustment for optimum head-to-head coverage.