Norco Professional Lifting Equipment - The 910044A Heavy Duty Male Connector adapts bases to the cylinders. Caution: When cylinders are used with maintenance set attachments or components, the maximum system pressure must be limited to half the rated pressure (5,000 PSI). The Male Connector has a 5 Ton Capacity (10 Ton on Cylinders), and has a connection of 1.25x11.5 Male.