40L ,80L , 160L , 240L , 400L and 700L Heavy Duty Laboratory Ovens Designed For Our Harsh Working Environment. Digital Control Units which are extremely accurate. Heavy Duty Re-Enforced Shelves. Heavy Duty Handle with catch. 400L and 700L Ovens are supplied complete with 6 x Shelves, and are supplied on a caster wheel frame, for easier movability.