Threaded connections as per DIN4925. 6m/pc for casing pipe, 3.2m/pc for screen pipe. 1.0-2.5mm slot width. Used for deep well. BFFX-XY UPVC well casing and screen pipe(XY UPVC casings) are made from virgin unplasticized polyvinyl chloride compound.Application: ideal for the installation of open hole deep well groundbeds in areas where a static water level can be reachedInstallation: with a male ...