5 Layer Replacement Filter for Dual Valve Sports Mask - 3 Pack
These filters are designed specifically for masks with dual valves, and they even have a little hole cut in the side to accommodate the valves . They're made from five-layers including an activated...
5 Layer Replacement Filter for Dual Valve Sports Mask
These filters are designed specifically for masks with dual valves, and they even have a little hole cut in the side to accommodate the valves . They're made from five-layers including an activated...