Desicc./lid PC, base/desiccant tray PP nom. size 250 mm, with venting stopper with non-return valve, dia. 285 mm, h. 300 mm

Polycarbonate lid. PP base and desiccant tray. Venting stopper with non-return valve in lid. Seal between lid and base: polychlorobutadiene rubber O-ring, compressed by vacuum.