The key specifications of the Catridge, Oil Removing, 50/75/100 CFM are — CFM: 50/75/100 Activated Carbon Polyproplene Media; Dimensions: Ø100x150mm(L). 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.