BrickLink - Set 970117-1 : LEGO Pneumatic Hand Pump (Pack of 2) [Educational & Dacta:Service Packs:Technic] - BrickLink Reference Catalog
Amazon | LEGO� TECHNIC: One LEGO pneumatic pump small (yellow) | ブロック | おもちゃ
Bricker - Part LEGO - 4701c01 Pneumatic Pump Old Style
Amazon.co.jp: 19 pcs 10 kinds of MOC pneumatic parts brick,air pump push rod switch piston air pipe,DIY small particle stem building blocks toy set Compatible with Lego and Air pipe random colors :
technic - Which sets currently contain pneumatic LEGO equipment? - Bricks
Brick-Shop - Technic 6005292 yellow 74981 pneumatic pump Parts Light Gray Technic Turntable, large Type 1, complete AssemblyElectric Battery Box Train Power Functions Motor online Engine Motor Lego (7897)
BrickLink - Part x191c01 : LEGO Pneumatic Pump Small (5.5L) [Pneumatic] - BrickLink Reference Catalog