LEGO part 19482c01 - Blue Pneumatic Pump V2 1 x 6 at BrickScout
LEGO 5107 Technic Pneumatic Pump Cylinder 48 mm | BrickEconomy
A Lego Technic Suction Pump
Pneumatic V2: New valve and modified pump – LC-jrx
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
LEGO part 26288c01 - Blue Pneumatic Pump Large (11L) with 1 x 3 Liftarm at BrickScout
LEGO Pneumatic Parts (air tank,manometer,pump,cylinder,mini,hose,switch,fitting) | eBay
LEGO MOC Lego Pneumatic Duplex Pump by Hans56 | Rebrickable - Build with LEGO