Manufacturer: Pisco, Ltd. [Features] Excellent sound dampening effect. Long life. Specifications: Reduction Volume (dB): 25 Effective cross-section area (mm²): 78 Working pressure (MPa): 0.9 Connection diameter: G1/2 (mounting screw size Rc1/2) Total length: 2.6 inches (66.0 mm) Outer diameter: 1.1 inches (29.0 mm) Maximum working pressure (MPa): 0.9 Weight: 0 g (15 g) Working fluid: Air 0 °C (freeze Nakiko) Working Pressure: 0 - 0.9 MPa [Materials/finish] Resin Parts: Polybutylene Terephthalate (PBT) Element: Polyvinyl hormar (PVF)