Brand: Endress+Hauser Item: Flooding protection tube For Use With: Endress+Hauser FMR20B-1A50/0 and FMR30B-1400/0 level sensors Material: Polybutylene terephthalate (PBT)/polycarbonate Endress+Hauser flooding protection tube, polybutylene terephthalate (PBT)/polycarbonate. For use with Endress+Hauser FMR20B-1A50/0 and FMR30B-1400/0 level sensors.