Designer and manufacturer of cooling towers and other specialised heat exchangers, SPX Cooling Technologies, has announced its first Proof in Performance vodcast series. This three-part series discusses how PVC film fill functions and why using Marley OEM replacement fill helps maintain certification and top cooling tower performance. In the Proof in Performance series, SPX product manager Jerome Jennings explains the concepts behind Marley hanging fill and the benefits it provides compared to other fill options.