Which sets currently contain pneumatic LEGO equipment? - Bricks
Elroy369Lion 32 Piece MOC Kit DIY Pneumatic Kit with Air Pump Push Rod Switch Piston Air Pipe for Lego Technic and Other Building Block Brands : Amazon.co.uk: Toys & Games
LEGO Pneumatic Kit Technic Cylinder Mini Pump Tubing Valve Hose Ev3 for sale online | eBay