Manufacturer: Cosmos Bead
Model: POR Type

Features

• POR (fine thread) valves have a small handle thread pitch for gentle opening and closing.
• A PTT (fast thread) type with a larger thread pitch is also available for quicker operation, with the same guaranteed vacuum level.
• The stopper (piston) is also available in glass (hard grade 1 glass), with the same guaranteed vacuum level.
• Other parts are available separately upon request.