Product Description Sprinklers Name: Impulse Pop-up Sprinkler Spray radius: 9.5-12m Spray diameter: 19-24m Connect size: 1/2" Female thread side inlet,1/2" and 3/4" Female thread bottom inlet Work pressure: 1.5-3.5 bar Flow rate: 650-990 L/H Nozzle size: 4.0mm Spray range: Full/part circle Distance adjustment 3" pop-up clearance Features: 1. Made of plastic, 2. Full/part circle spray, covering large range, water droplets evenly 3. Spray head is adjustable, extend height is about 3"" 4. Spray head is easy to install, and very convenient to clear pipe 5. High elasticity spring, it can avoid leak effectively when water pressure is low. 6. Spray edge is clear, reduce wasting water and leak water. The inside spring is stainless steel, will not get rusty. Note it is manual measurement, there may be 1-2mm error.