Cold traps, borosilicate 3.3, one-piece
Borosilicate 3.3 glass, one-piece, with GL 45 neck and cap closure, GL 14 threaded side connections with caps and plastic tubing adapters.

Product Specification:
Capacity: 250ml

FAQ

What is the hose size of the "Rettberg Cold Trap Duran 250ml GL 45/2xGL 14 134051036". I assume it has 10mm hose connection, right?

  The unit has GL 45 neck and cap closure and GL 14 threaded side connections. GL14 means the hose size is 14mm.