This silencer features 16/20mm male thread, which is universal and easy to install. This muffler is widely used on the air inlet of air compressors, which can greatly reduce the noise of air intake. And it can also effectively block the dust in the air moisture. Made of high-quality plastic, this silencer is durable to use. It is 9cm long, 9cm wide and 10cm high. Made of high-quality plastic, this silencer is durable to use. It is 9cm long, 9cm wide and 10cm high. It is a ideal accessory for air compressors to reduce noise. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Item Name: Air Compressor Muffler Material: Plastic Screw Thread: 20mm (1/2PT), 16mm (3/8PT) Size Details: Size: 9cm x 9cm x 10cm/3.54" x 3.54" x 3.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Air Compressor Muffler