SIGMA Combination Filter RD 40x1/7 Thread

SIGMA Combination Filter

The SIGMA combination filter has a standardized RD 40x1/7 thread and is compatible with multiple masks and ventilation units. It is offered as a compatible replacement for systems using this thread.

• Standardized RD 40x1/7 thread
• Model: SIGMA combination filter
• Compatible with CM-6, Sari, Promask Black, Scott, Kemira, Draeger, MSA Auer masks
• Compatible with CleanAir and Scott Proflow ventilation units
• Suitable as a replacement for systems with RD 40x1/7 thread

Ideal for

• CM-6, Sari, Promask Black, Scott, Kemira, Draeger, MSA Auer masks
• CleanAir and Scott Proflow ventilation units