Can be held by Eisco Ring clamp CH0674B with Metal ware stand MTST1 or STRD1
Eisco Labs Borosilicate glass Funnel Filter 3" Diameter, Pitch of 60° angle. Long stem 2.75" One Funnel Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.