Cat® Dust Cap provide an environmentally sealed interface to prevent the intrusion of moisture, dirt and other contaminants into unmated plugs. Dust caps allow easy access to ports and protect internal components from external contaminants. Cat caps and plugs are held to the highest standards of quality and reliability. These caps and plugs are manufactured to exacting tolerances to ensure leak free connections. Quality you expect for your equipment. It is a RoHS compliant product.Application:Cat® Dust Cap is used to cover the connector plugs of Cat machines. Consult your owner's manual or contact your local Cat Dealer for more information.