Plastic sprinkler with one way valve

Plastic sprinklerhave different size of nozzlewith nonreturnable valveSprinkler end is 1/2 inch female BSP Thread and the other end is 1/2 inch Male BSP Thread. Help prevent erosion and damage to crops. Normally when you turn the pump off, all the pipes are still full of water and the sprinklers at the lowest point stop turning, they continue leak out all the water. Causing damage to the crops at the same time creating erosion as every time you water the sprinkler stops in a different area the damage is spread to a new area. This check valve will stop this being a problem.