This expanded line of clamp-together duct now comes with free 3-D design software. Assembled with the lifetime-guaranteed Forever Clamp, the duct is available in galvanized or stainless steel in 1-inch diameter increments from 3 inches to 24 inches. Accessories such as in-line mist accumulators, industrial-grade blast gates, swiveling ball joints, sweeps and hoods are included. Clamp-together duct is ideal for virtually any negative-pressure ventilation system up to 40-inch water gauge with dust, sand, fumes, mist, smoke, chips, trim scrap and more. Clamp-Together duct ranges from 24-gauge to optional 10-gauge thickness in galvanized and stainless steel with numerous options.
Kirk & Blum, 8735 W. Market St., Greensboro, NC 27409; (800) KNB-DUCT; www.kirkblum.com.