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Geocomposite Drainage - Techdrain Fin25

Techdrain FIN25 is 25mm HDPE cuspated drainage board fully wrapped with a PP geotextile filter/separator. Techdrain FIN25 geocomposite ventformer has been designed to provide a passive venting system for gasses and liquids. Techdrain FIN25 is used extensively as a TYPE 5 fin drain in highway drainage.