This Aventics SI1 pneumatic muffler effectively reduces noise of air-powered tools, valves, and cylinders exhausts. Made entirely from durable polyethylene. It features G 1 inch male threads. Suitable for pressures between 0 and 10 bar (0 and 145 psi). The muffler can withstand ambient temperatures between -25 and 80 °C (-13 and 176 °F).