Gardena Irrigation Sprinkler Watering Systems - Connector 2775-20 Ref: GRD2775 Sprinklersystem Quick and easy - without tools! Install your Sprinklersystem without tools and let the garden water itself with Pop-Up Sprinklers. It can't be easier than this! Quick&Easy connection techlology makes easy mounting and dismantling of the pipe possible by a simple 140º twist. £3.77