Evaporative Cooler Stand Calculator This calculator was designed to help you figure out the length of the legs ("B", "X") and the height of the front ("C") and back ("D") of the roof jack for your evaporative cooler. Please answer the questions below the horizontal line and click the "Calculate" but...
General Metals DUCT BOARD GROOVING MACHINE GM SG-220 .This machine includes 7 tools configured for 1" or 1-1/2" thick duct board. Stock model includes tools for 1" thick ductboard and an optional set of 3 ductboard support arms. Power requirements: 120 VAC, single phase, 50 hz or 60hz. Less than 20 ...