This is the Anti Asphyxia valve and clip that is inserted into the Elbow Assembly for the Original Mirage Quattro and Quattro FX Full Face Mask. Return On Warranty Issues Only
Specifications
This Product Includes...
Anti Asphyxia Valve
Elbow Clip
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"fit properly, felt good to replace older valve which , like other flexible plastic parts of the mask, was threatening to loose its effectiveness as it aged and stiffened"