The Hickok/Waekon CST Cooling System Test Kit, No. 62868, uses shop air to maintain constant system pressure so users can find the leak the first time. The design eliminates the potential leak problems with rubber plugs or bladders. The one-piece, all aluminium adapters last a lifetime, and the quick disconnect hook-up design minimizes set up time. The kit includes a pressure test regulator, twist lock "A" size and small neck radiator adapter (B & C retainers), a 5' pressure bleed off hose, nine machined aluminum adapters, a universal CAM-style adapter, "A" & "B" spindle adapters, two blow molded storage cases and a user guide with adapter look up.