The following filter options are available for GMP251:
- Standard membrane filter, order code ASM211650SP. Gas can enter only through the top of the filter (plastic grid covered with membrane), the sides of the filter are solid.
- Porous sintered PTFE filter for extra protection, order code DRW243649SP. The porous material of the filter allows gas to enter from all sides of the filter.
- Flow-through adapter, order code ASM211697SP. Two gas ports for controlled gas feed (port outer diameter 4.6 mm, port hole inner diameter 2 mm, suitable for tubing with 4 mm inner diameter).