Gardena Turbo Drive Sprinkler with Spike coverage 75m2 to max 450m2 - Gardena 831-20 Ref: GRD831-20 Silent sprinkler with spike for large areas. Watering in two stages ensures even water distribution: distant and close range are watered one after the other. Dirt resistant, patented turbodrive gear, and fine meshed filter. Area coverage: 75 - max. 450m²; Price: £22.04 (Including VAT at 17.5%)