The key specifications of the Copper Tube-in-Tube Models Capacity 1500 CFM Water Cooled are — Nominal Capacity: 1500 cfm; Electrical Connection: Yes 415V/ 3ph, 50Hz; Air Connection: 5" NB ASME Flg In I Out; Rated Power(kW): 6.3. These specifications are based on the standard GEM Equipments design; always verify against your machine's requirement before use. GEM Equipments Pvt. Ltd. is an ISO 9001:2015 certified, India-based manufacturer (since 1984) of compressed air dryers, cooling towers, industrial chillers, and compressed air treatment accessories, headquartered in Coimbatore, Tamil Nadu.