Type 1379 Duragauge pressure gauge is offered in 4 1/2", 6" and 8 1/2" dials sizes. This rugged, solid-front aluminum case gauge is tops in its field. It is available as a weatherproof hermetically sealed or liquid-filled version in 4 1/2" and 6" sizes in pressures to 30,000 psi.Like the 1279, it can be easily field converted from the weatherproof version to either the sealed or liquid-filled version using an optional kit. Ranges 50,000, 80,000 and 100,000 psi are available in 6" hermetically sealed and liquid-filled cases. All cases are coated with black epoxy which will withstand most environmental conditions.