Modified LEGO Pneumatic Cylinder - V2 2x11 - Extra Large - 19467c01 – Green Gecko Workshop
High Tech Parts Blue Pneumatic Pump Small (6L) V2 with Reinforced Cylinder 19475 2793C01 1x5/2x6 Compatible with MOC 8800 Blocks|Blocks| - AliExpress
BrickLink - Set 970117-1 : LEGO Pneumatic Hand Pump (Pack of 2) [Educational & Dacta:Service Packs:Technic] - BrickLink Reference Catalog
LEGO® Technic review: 42144 Material Handler | New Elementary: LEGO® parts, sets and techniques
Sariel.pl » Compressors
tutorial_iv [DASL Wiki]
LEGO Pneumatic Motorized Compressor with Building Instructions - YouTube
A beautifully-designed LEGO pneumatic compressor | Arduino Blog
Technic Parts for Lego Kit Pneumatic pump Small 6L V2 19476 Building Blocks Sets | eBay
Lego Vacuum Pump - YouTube
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 Pipe