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Vacuum maintenance time is long
External special vacuum pressure gauge
Polycarbonate material; High quality sealing ring
Fine adjustment of intake air volume
Pipe connection is convenient and fast
T-king 250MM Polycarbonate Plastic Vacuum Dryer-- Laboratory Dessicator Dryer Vacuum Drying Storage Double Valve with Pressure GaugeFeatures: 1. Vacuum maintenance time is long 2. External special vacuum pressure gauge 3. Polycarbonate material 4. High quality sealing ring 5. Fine adjustment of intake air volume 6. Pipe connection is convenient and fast Specification: Inner diameter: 250MM Outer diameter: 277MM Total height: 315MM Diameter of the partition: 230MM Ambient temperature: -25~120°C Package including: 1 x 250MM Polycarbonate Plastic Vacuum Dryer