Air Filter Trap Tool The size of the water oil separator filter inlet outlet port is 1/4", small size, light weight. HumidityCompressor Filter The oil water compressor filter adjusts the main air pressure channel to a pressure value Compressed Air Oil Separator Compressor Water Separator.easy to install and maintain, can filter small particles, keep the air clean 1/4" Compressed Air Filter The regulator air filter helps toprotect your pneumatic tools with a much longer lifespan. Specification: Item Type: Oil Water Separator Filter Material: Aluminum Size: 15.5*4.1 cm / 6.1 * 1.6 inch Color: Black Quantity: 1 Pieces 1/4 "Filter Regulator Notes: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight differences.0.5-2cm differences due to manual measurement Air Filter Compressor Gauge Package includes: 1 Pcs Oil Water Separator Filter.