Maverick, 4 GPH, 2 Outlet Retrofit Drip Kit, 12 Female Pipe Thread, Converts An Existing 12 Sprinkler Riser To A 12 Outlet, 12 Outlet Pressure Compensating Drip Head Operates At Any Pressure Between 10 80 PSI, May Be Used With 18 Or 14 Micro Tubing, A 14 Laser Soaker Hose, Or With Any Dripper, All Parts Included