Features: Impurity separation: The transparent filter bowl of the air compressor moisture separator provides a visual inspection of the accumulated water, and filters airborne solid residues through the spring valve at the bottom, such as rust, condensation for air lines and more. Sturdy material: The air compressor water filter separator is mainly made of aluminum alloy and plastic, reliable and safe, not easy to oxidize, improving the durability of the tool and bringing you a nice experience. Specifications: Main material: aluminum alloy, plastic Main color: blue Inlet and outlet thread: 1/4 inch NPT Size: Length: approx. 9 cm/ 3.54 inches Diameter: approx. 4 cm/ 1.57 inches Weight: approx. 0.1 kg Quantity: 6 pieces Package includes: 6 x Water oil separator filters Notes: Please check the size information carefully before ordering. Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.