Feature:* Made of durable Metal material, feature 0.79" threads.* Ideal air compressor accessories, quite easy to install.* Widely used in the receiving port of air compressor, it can greatly reduce the noise of the air supply.* It is a great option to reduce the noise of the compressor and is a great option. Specification:Material: MetalColor: BlackDriving Method: PneumaticApplication: CompressorsThread Type: 1/2" BSP(1/2" G)Thread Diameter: About 20mm/0.79"Hole Diameter: About 15.4mm/0.61"Overall Size(Approx.):150x100x60mm/5.91x3.94x2.36" (L x Diameter x H)Package Included:1 x Metal Case1 x Filter ElementPlease Note:-Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!-Manual measurement, please allow 1-3mm error. Thank you for your understanding.