Double threaded bulkhead is commonly used in water systems like water tanks, water towers, and water inlets/outlets. It is also popular in DIY water storage containers and rain water container. Furthermore, it acts as a versatile connector for pipes, fittings, hoses, and faucets.Specification Color: WhiteMaterial: ABS+PVCFitting for Wall Thickness: 10 mm / 0.39 inchFemale Thread Diameter(Approx): 20 mm / 0.79 inchMale Thread Diameter(Reverse Thread): 28mm / 1.1 inchOverall Size: 40×35 mm / 1.57×1.38 inch(W X L)Packing List: 2 x Water Tank ConnectorAdvantagePremium Material – The water tank connector fitting, made of ABS, offers durability and rust resistance for a long lifespan in outdoor conditions.