These let you split off branch feeder tubes and terminate them instead of making wide loops with your feeder tube. Outside for big plants, you may not need to use these but for smaller areas and greenhouses, they really help. Use a tee at the end of a loop to install an air release valve. Use the end pieces to terminate an 8 mm supply line with a Blumat sensor.
** (Contains 2 tees and 2 end-pieces.)
