Closures for narrow-mouth reagent bottles, series 310, PP, UN-approved
Type 1: Light cap, black, tamper-evident ring and PTFE cup-shaped liner.
Type 2: Bell cap, black, with red PP tamper-evident ring and cup-shaped PTFE liner.
Type 3: Bell cap, red, with degassing membrane, red PP tamper-evident ring and cup-shaped, perforated PTFE liner.
Type 3. Bell cap
For Thread o.d. 45 mm
For bottles 500, 1000, 2500 ml