Check the listing for details. Teco Maxima Vortex PC Spike Dripper. Condition: New. Listed at 13.41 USD. Maxima Vortex PC Spike DripperMaxima vortex spikes offer great coverage from a 2.5' to 9.8' radius, making them ideal for home gardens, vegetable patches, and nurseries. These pressure compensating (PC) vortex spikes maintain their spray diameter and flow rate even when water pressure fluctuates.Spray Radius at 30 PSI: Orange8 GPH2.6' radiusBlue10 GPH3.5' radiusViolet12 GPH4.8' radiusGreen13 GPH6.0' radiusRed15 GPH9.4' radius(For source pressure above or below 30 PSI, please review the Maxima Vortex Spike Performance file above for additional flow and coverage details.)Maxima Vortex PC Spike Dripper Features: 6" height; UV stabilized; Consistent outflow and radius when feed pressure varies; 0.18" Inlet barb; 8 GPH to 15 GPH flow rate; 2.5' to 9.8' spray radius; Filtration Requirements: Orange and blue: 120 mesh (130 microns) Violet, green, and red: 80 mesh (200 microns)