This barbed 1/2" inline ball valve is a must-have for any hydroponic system or aquarium. It features a shutoff valve and flow regulator, making it easy to control the water flow and aeration equipment. The valve is made from high-quality materials, ensuring durability and long-lasting use. The set includes one gray valve with a diameter of 0.5 inches, perfect for use in water aeration equipment, hydroponic systems, and aquariums. It is easy to install and use, and is a great addition to any water gardening or outdoor living space. Combined shipping on 2 or more.