Havelock Hose End Connector is built to fit most male-ended connectors, Havelock Aqua stop connectors connect and secure in seconds. To release, simply pull down on the yellow body. Thanks to the additional benefit of aqua stop, the internal valve stops the water flow when a watering accessory (e.g. Spray gun) is disconnected, enabling you to easily switch between accessories without wasting water or getting wet. Made from high-quality material and thanks to its unique component assembly points, Havelock connectors provide strength and resistance against everyday use and ensure a secure leak-proof connection every time. Together with a triple contact point, results in the strongest possible connection year after year. Twin soft touchpads provide a comfortable grip for easy connection/disconnection even when wet. Havelock hose connectors click and connect within seconds and are built to fit most male end connectors. Made from the highest quality materials DuPont Delrin Acetal, ultra-tough engineering thermoplastic, that bridges the gap between plastic and metals. It has 12.5 mm and 15 mm hose diameters.