Pneumatic Brass Exhaust Muffler Silencer BSP 1/8" 1/4" 3/8" 1/2" Noise Filter Pneumatic Muffler
https://www.vogueparade.com/shopping/EN/200282142/1/1005003654501313/pneumatic-brass-exhaust-muffler-silencer-bsp-18andquot-14andquot-38andquot-12andquot-noise-filter-pneumatic-muffler/