Pneumatic Cylinder with 2 Inlets Small (32mm) : Part x189c01 | BrickLink
Pneumatic Cylinder Bracket 1/2 (Medium) (8XP67BHAM) by SevenStuds
Amazon.com: 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 : Toys & Games
LEGO 5116 Technic Pneumatic Piston Cylinder 32 mm | BrickEconomy
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
Modified Pneumatic Cylinder - Medium Stud End - Old Style – Green Gecko Workshop
Technic Dampers - Pneumatic - LEGO® Pneumatic Cylinder V2 1 x 11 - The shop Briques Passion
Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm) : Part 47224c01 | BrickLink
LEGO part 47224c01 - Yellow Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm) at BrickScout