Breather Valves, also known as Pressure Relief Valves, prevent excessive pressure or vacuum buildup in sealed containers, which reduces container weight, cube, and cost.  AGM manufactures a variety of Breather Valves, which include valves that keep dust, water, and blowing sand from entering containers. These Breather Valves meet SAE AS27166 (replaces cancelled MIL-V-27166). Products include: One-Way Pressure Relief Valves; Two-Way Pressure Relief Valves; Filler Valves; RFI/EMI Shielded Nut Assemblies; Drain Plugs; and Mounting Flanges. AGM also offers a full line of Immersion Proof Breathers.