• All models listed are rated and qualified by U.S. Forest Service Test Center under STD. 5100-1 and Department of Defense SPEC. MIL. A-27302A
• Attenuation 6 - 10 dBA
• All sizes with (H) indicates horizontal position except for 7AC, this model is qualified in vertical and horizontal position
• All sizes are available in 304 / 316 S.S.
• Available in pipe thread, slip fit and flanged connections
• Clamp included
• Outlet can be reduced to match inlet
• Weather Stops