1. Air wye branch 2. 4 x 4x 4'', 6 x 4 ... x 10 x 10'', 12 x 12 x 12'' avaiable Air Wye Branch Features:* Our Wye Branches are made from a ... :* Cases are packaged in corrugated boxes for easy handling and protection Sizes:* 4 x 4x 4'', 6 x 4 4'', 6 ... tents, CO2 generators, reflective material, in-line fan, carbon filter, air wye branch etc. ventilation fittings. If you're interested please ...