Inquiry (采购产品): check valve UTC Power formerly International Fuel Cells purchases 1" check valves for their PC25 product. Are 4" swing check valve available in your product line. Please mail a catalog. Best regards, Ricardo Brown **** Hidden Message ***** Ricardo Brown 195 Governor's Highway M/S 601.07 South Windsor, CT 06074 USA Company: UTC Power Title: Sr. Mechanical Design Engineer Phone: 860-727-2066 E-mail: ricardo.brown@utcpower.com **** Hidden Message ***** ricardo.brown@utcpower.com