This in-house capability gives us complete control over design, manufacturing and quality, letting us offer pultruded FRP towers economically across every size and application. Every profile is tested and certified by the Indian Institute of Technology, Madras. For highly corrosive environments where customers would otherwise need RCC or stainless steel structures, the PM Series delivers faster execution than RCC and lower cost than stainless steel — cooling up to 4,000 m³/hr/cell.