For Most 1/4" Tubing: Work perfectly with most standard 1/4" drip irrigation tubing (ID: 4 mm/0.16", OD: 7 mm/0.27"). Deliver reliable performance under pressure up to 40 psi (2.82 kg/cm²). NOTE: Not Compatible with PE Tubing. Tubing Not Included 8-Hole Spray Head: Designed with 8 spray holes for 360° full-circle coverage, ensuring even, efficient irrigation across your land. Promote deep soil penetration and steady hydration from roots to leafy plants, keeping your garden lush and thriving Adjustable Water Flow: Max flow rate: 18 GPH. Simply rotate the head to switch from gentle droplets to powerful spray, covering up to 6.5 feet. Effortlessly customize the perfect water flow for targeted and precise irrigation Easy to Install: Soften the irrigation tubing by placing its end in hot water, making it easier to slide onto the drip emitter. Next, insert the emitter inlet into the tubing and push the stake into the soil for a secure fit Wide Application: 30 irrigation drippers for all your growing needs! A smart solution for gardens, trees, shrubs, nurseries, flower beds, vegetables, greenhouses, lawns, etc. Ensure consistent growth and vibrant greenery all season long Ideally for flower beds, vegetable gardens, greenhouses