Image Item No. Description  x189c01  Pneumatic Cylinder with 2 Inlets Small (32mm) Catalog: Parts: Pneumatic  x191c01  Pneumatic Pump Small (5.5L) Catalog: Parts: Pneumatic  4694c01pb03  Pneumatic Switch with Top Studs with Arm Lever Control Pattern (Sticker) - Set 8868 Catalog: Parts: Pneumatic