Metal-Fab has introduced a new line of larger diameter special gas vent for condensing gas appliances, category II, III and IV. The New Corr/Guard II is available in 26-inch though 36-inch diameters and features a new flanged design for liquid-tight connections. Sealant is applied to the flanges, components are butted together and connected with a Vee band connector, and engineered for exact, leak-free fit around the pipe flanges. The flue is constructed with AL29-4C stainless steel. Choices of outside casings include aluminized steel, types 430, 304 or 316 stainless steel. With this addition, the new Corr/Guard II line now includes a complete selection of pipe and components in 6-inch through 36-inch diameters, including new 7-inch and 9-inch diameters.

Metal-Fab Inc., 3025 May Ave., Wichita, KS 67201; (800) 835-2830; www.metal-fabcommercial.com.