Fixed spray sprinkler, Use for small lawn/shrub areas, Ratcheting riser for fine-tuning alignment after installation, Heavy duty stainless steel retraction spring improves pop-down and resists corrosion, 1/2"" female NPT inlet, Zero flush- no water loss at start up, Superior spring and seal prevents water waste and ensures proper retraction, 570Z™ pro series, 90 arc, 4"", Length: 2, 06, Width: 2, 06, Height: 6, 83 SKU: JNSN53168