1997 Marley Aqua Tower-75 Ton. Model: 3851. S/N: 121173·B24526M·3851·97. Stainless steel materials of construction include: attaching bolts and screws , internal supports, motor base, water distribution plate, filter screen, and basin outlet cover. Fan diameter: 4 ft. Fan pulley diameter: 1 ft. Belt size: 2A120. Electric Motor. 2 hp, 1410 rpm, 6.8/3.4 amps, 50 Hz, 3-1/2 in. pulley diameter, ratio: 0.29, final rpm: 411.25. Johnson Controls Control Panel, Model: 1C, type: 472AE, range: 25/90F. Other components and construction materials include: bottom Framework and fan shroud are galvanized steel, fan bearing support and pulleys are steel, center of the fan that all the blades connect to is cast aluminum, basin and outer walls are fiberglass. Inlets: (1) 1 in. dia. makeup valve port, (1) 5 in. dia. port, (1) 9 in. dia. port. Outlets: (1) 1-1/2 in. dia. port, (1) 4 in.dia. port. Overall dimensions: 7 ft. 6 in. L x 6 ft. 3 in. W x 8 ft. 7 in. H.