FESTO Gas Sensors Muffler 612348 - FESTO 165006, Festo's muffler 165006 UC-QS-4H is designed to operate at a maximum pressure of 10 bar. It features a polyethylene construction, which makes it durable and suitable for pneumatic systems. Typically used in industrial applications, this muffler effectively reduces noise in compressed air systems. FESTO 165006 Muffler UC-QS-4H 10 bar noise-reducing small design