Modified LEGO Pneumatic Cylinder - V2 2x11 - Extra Large - 19467c01 – Green Gecko Workshop
LEGO® 26288c01 6152004 - 6353193 - ToyPro
LEGO® 6133813 - 6156732 19482c01 - ToyPro
LEGO Regulated Air Compressor
LEGO MOC Lego Pneumatic Simplex Pump by Hans56 | Rebrickable - Build with LEGO
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: Goshfun 19Pcs 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