Replace a lost or damaged vacuum system cone adapter or add a new one to your existing kit with the STEELMAN 60426 Universal Cone-Shaped Vacuum Adapter. This radiator fill neck adapter is made from durable rubber that is just flexible enough to create a secure seal around the opening of filler necks. The top of the adapter has a quick-connect fitting to allow for easy attachment to hand held pressure pumps as well as pneumatically powered vacuum pumps. Compatible with the pressure and vacuum pumps used in the STEELMAN 60025 Master Cooling System Test and Purge Kit.