50' Spacing, Brass Impulse Sprinkler, Brass, Bronze & Stainless Steel Construction Last Up To 5 Times Longer Than Zinc Sprinklers, Adjustable Deflector Flap Adjusts Stream Length, Diffuser Screw Helps Prevent Brown Spots By Breaking Water Into Smaller Droplets, Full & Part Circle Coverage, With Infinite Pattern Adjustment, High Gallonage Output.