Description:Cat® Shield Trim is the physical shape of the plug and seat arrangement. The shape of the valve plug determines the flow characteristics of the valve. Different valve characterizations may be achieved by re-shaping the valve trim. They are standard ports. With longer maintenance intervals, this extends your work cycles which saves you time and reduces lost revenue due to downtime. Choosing genuine Cat® Parts is a wise investment for your hard-working equipment.Application:Consult your owner's manual or contact your local Cat Dealer for more information.