Description:Cat® Sound suppression insulation and acoustical foam pieces are integrated into the design of Cat heavy duty equipment to block and absorb noise. Cat liner provides vibration isolation, thermal insulation and sound absorption in the operator compartment of Cat heavy equipment.Application:Cat sound suppression components are used in heavy duty Cat equipment to reduce machine operation noise to safe levels based on national and international standards. Quality you expect for your equipment. Consult your owner's manual or contact your local Cat Dealer for more information.