ATO Single Acting Pneumatic Cylinder, 20mm Bore, 75mm Stroke, Mini Pneumatic Air Cylinder Random Color: Amazon.com: Industrial & Scientific
SMC NCMB106-0100S Stainless Steel Air Cylinder, Round Body, Single Acting, Spring Return, Front Nose Mounting, Not Switch Ready, No Cushion, 1-1/16" Bore OD, 1" Stroke, 0.312" Rod OD, 1/8" NPT: Industrial Air
Airtac MSAL: Single Acting Round Body Air Cylinder - MSAL40x50U | Trimantec
Single acting pneumatic cylinder - YouTube
What are Single Acting & Double Acting Hydraulic Cylinders | by VComp Inc | Medium