Description:This coupling has one end that is same as the other for connecting same sizes of pipes going in the same direction. It has threads for creating tighter seals and is made of stainless steel 304 for higher corrosion resistance. There are 4 different sizes for your choice.These pipe fittings are components used for connecting pipes of flow without changing the direction of piping in many different industries. Features:Made from stainless steel 304 materialfor strength, rust-proof, durable and long service life. Straight coupling for connecting two pipes of same sizes going in the same direction.Male threads on both ends for connecting two female threaded pipes of same sizes.Can be used on various pipes, such as air pipe, fuel pipe, water pipe, etc.Light weight and easy to carry, easy and convenient to install.Specifications:Material: 304 stainless steelType: Male x MaleConnection: BSP-BSPLength: 200mm / 7.87"Thread Size(optional)1/4"BSP1/2"BSP3/4"BSP1"BSPInner Diameter9mm15mm21.7mm27mmWeight(approx.)132g178g220g375gQuantity: 1pcPackage Includes:1 x Pipe Fitting Note:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.