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Discreet design
Air Flow Restrictor
Fits all Screw Fit Gas Masks
Two large holes
Twist regulator
New material - made from PET-GF for a stronger, more durable valve

The Twist Adjustable Restrictor Valve is designed to screw to any screw fit gas mask, such as the S10 or Russian Gas Masks.

Featuring 2 large internal holes in the valve, the top plate can be twisted to control the rate of air flow.
The two thumb grips help to make adjusting the valve easy.

When screwed into a gas mask, the valve becomes almost hidden!

New material - made from PET-GF for a stronger, more durable valve.