technic - Which sets currently contain pneumatic LEGO equipment? - Bricks
Amazon.com: Goshfun 32Pcs 10-Kinds MOC Pneumatic Parts Bricks with Air Pump Push Rod Switch Piston Air Pipe, DIY Small Particle Stem Building Blocks Toy Set Compatible with Lego, Random Color of Air
Amazon.com: LEGO Technic Material Handler Crane 42144 Building Toy Set for Kids, Boys, and Girls Ages 10+ (835 Pieces) : Toys & Games