DIG Fan Micro Sprayer Stake Assembly - Pack of 100DIG fixed pattern Wing Fan Micro Sprayers with male hex thread are available in 90, 180 and 360 or as a complete assembly on PE flex riser with spike, offering a flat trajectory spray pattern with a flow rate of 6. 2 to 44 GPH at 15 to 30 PSI. Used for groundcovers, shrubs and trees, the fan micro sprayers are ideal for areas where low flow overhead irrigation is desired or for areas where drip emitters or conventional sprinkler systems are not