Pvc Garden Hose Bulkhead Fitting With Plug, 1/2" Female Npt,, Sinks?4 Pack?? Easy to use: Drill a 1-1/16 to 1-1/8 inch diameter hole for installation. 3/4" GHT external thread for connection to garden hose fittings with 1/2" NPT internal thread on both sides for 1/2" hoses, taps, fittings, etc. Please check the dimensions before placing an order. What you will receive: The package contains 6 pieces of threaded bulkhead, water tank, water tower, water inlet and outlet, rain barrel, homemade water storage bucket, and can also be used for various pipes, accessories, hoses, faucets, etc., to bring convenience to your daily life. High quality material: The threaded bulkhead of the water tank connector is made of high quality PVC material, which will not fade, crack or flake, so it is durable and can serve you for a long time, giving you a good feeling of use. Multi-purpose tools: Threaded bulkheads will fit the shape of the round barrel, keeping your barrel fresh with rain year after year; It is suitable for commercial and industrial use. Leak-free: Bulkhead fittings are designed with threaded connections reinforced by two rubber rings and prefabricated washers, making the connections less prone to leakage or sliding.