Combination of CP7830 and CP7840. Check vacuum operated components on cars and trucks, including distributor advance mechanisms, heater and air; conditioning baffles, PCV & EGR valves, headlight cover doors, and transmission modulators. Allows you to bleed brakes without the mess. Adapters included for all vehicle brake systems. Rugged steel handle; Solid brass cylinder, cylinder head and piston; 24" hose; Cushioned handle grips; Tapered barb adapters; Use to siphon fluids; Tapered and 90º adapters; Air sealing lubricant