Wheaton Dry Seal Vacuum Desiccator Glass Bowl 12x13 10" Deep w/ Perforated Shelf

Wheaton Dry Seal Vacuum Desiccator Glass Bowl 12x13 10" Deep w/ Perforated Shelf

This is a Wheaton Dry Seal vacuum desiccator, a heavy-walled borosilicate glass drying and storage chamber used in laboratory settings to protect moisture-sensitive samples. The unit consists of a deep ribbed glass bowl, a large domed glass lid with a stopcock valve for vacuum attachment, a blue rubber dry-seal gasket, and a perforated metal shelf insert that sits approximately 3 inches from the bottom to support samples above any desiccant placed beneath.

Specifications & What's Included

• Brand: Wheaton
• Type: Dry Seal Vacuum Desiccator
• Footprint: 12 x 13 in
• Interior depth: 10 in
• Construction: Heavy-walled clear borosilicate glass bowl and dome lid
• Seal type: Dry Seal — blue rubber gasket (no grease required)
• Lid: Domed glass with integrated glass stopcock valve for vacuum line connection
• Shelf insert: Circular perforated metal plate (vented), rests on interior ledge approx. 3 in from bottom
• Includes: Glass bowl, domed glass lid, stopcock valve, blue rubber gasket seal, perforated metal shelf insert

Applications

Vacuum desiccators like this Wheaton Dry Seal model are standard laboratory equipment used to store moisture- or oxygen-sensitive samples in a dry, controlled atmosphere. The stopcock allows connection to a vacuum pump to evacuate the chamber, which speeds up drying and prevents atmospheric moisture from reaching hygroscopic materials, reactive compounds, or precision samples. The perforated shelf keeps samples elevated above the desiccant layer — typically silica gel or indicating drierite — placed in the bottom of the bowl. These desiccators are commonly found in chemistry, biology, pharmaceutical, and materials science labs for tasks such as drying precipitates, storing standards, and conditioning samples prior to weighing. The Wheaton Dry Seal design eliminates the need for vacuum grease on the mating surfaces, using a rubber gasket instead — a practical feature that reduces contamination risk and maintenance. Units of this size (12–13 in diameter) are well suited for storing multiple sample containers or larger specimens simultaneously.