![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 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](https://m.media-amazon.com/images/I/51I6RtRYb6L.jpg)
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 Pneumatic Pump (Old Style) 48mm with Black Piston (4 Studs Long) and Spring (4701) | Brick Owl - LEGO Marketplace LEGO Pneumatic Pump (Old Style) 48mm with Black Piston (4 Studs Long) and Spring (4701) | Brick Owl - LEGO Marketplace](https://img.brickowl.com/files/image_cache/larger/lego-pneumatic-pump-old-style-48mm-with-black-piston-4-studs-long-and-spring-4701-28.jpg)
LEGO Pneumatic Pump (Old Style) 48mm with Black Piston (4 Studs Long) and Spring (4701) | Brick Owl - LEGO Marketplace
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Why won't my brand new lego pneumatic pump activate the pneumatic cylinder? Did I do something wrong? : r/lego
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