Image Item No. Description  2793c01  Pneumatic Cylinder with 2 Inlets Medium (48mm) with Black Top Catalog: Parts: Pneumatic  2793c02  Pneumatic Cylinder with 2 Inlets Medium (48mm) with Yellow Top Catalog: Parts: Pneumatic  2797c02  Pneumatic Pump Second Version with Black Top Catalog: Parts: Pneumatic  2797c03  Pneumatic Pump Second Version with Yellow Top Catalog: Parts: Pneumatic