Rajeev Metal Industries offers Seal off Dispenser for Grease Guns. Rajeev Metal Industries is an ISO 9001: 2000 certified company. Seal off Dispenser for Grease Guns are used for manually operated Grease Guns. These are used with steel extension or flexible hose. Seal off Dispenser for Grease Guns are available in chrome plated finish and zinc plated finish.