Ecotech Environmental and Petromarine Engineering Pvt Ltd offers Hydrocarbon Resistant Materials made Flexible Roof Drain System. Ecotech Environmental and Petromarine Engineering Pvt Ltd offers various types of Air pre-cleaners, fuel protection system, water separation and pre filtration system, micro-filtration system, fast fuelling system, weed harvesters, bio remediation sludge recovering system, cargo control systems, monitoring systems, cargo handling systems etc. Hydrocarbon Resistant Materials made Flexible Roof Drain System ensure faster and efficient drainage of water from aboveground storage tank`s floating roof without the risk of product entering the drain or water entering the product. This Flexible Roof Drain System is available in sizes up to 8 inches diameter.