The Ezi-action® Adaptor Fitting secures and locks the Ezi-action® Drumpump into the bulk container. Ezi-action® M Adaptor Fittings are supplied for drums that have an internal threaded opening. Ezi-action® C Adaptor Fittings are supplied for containers that have an external threaded opening. The most commonly required Ezi-action® Adaptor Fittings are supplied with the Ezi-action® Drumpumps. Other Ezi-action® Adaptor Fittings can be sourced separately.