Twist Adjustable Restrictor Valve

• Discreet design
• Air Flow Restrictor
• Fits all Screw Fit Gas Masks
• Two large holes
• Twist regulator
• Made from PLA Bioplastic

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!

Made from PLA Bioplastic from renewable sources.