technic - Which sets currently contain pneumatic LEGO equipment? - Bricks
pneumatic_web_tut [DASL Wiki]
NEW LEGO Technic 42053 Volvo EW160E Pneumatic System V2 1166 PCS New Sealed 673419248761 | eBay
LEGO® Technic review: 42144 Material Handler | New Elementary: LEGO® parts, sets and techniques
Build 19 Piece Pneumatic Kits with Technik Parts Contains Air Pump, Piston Pressure Rod, Cylinder,Pneumatic Hose &More,Great for DIY, MOC Tech, Compatible with Lego