stainless steel casing for concreting, as a recess for later installation of pipes and cables using KRASO Sealing Insert (not included). ID = Internal Diameter casing true diameter
KRASO Casing Type E/FE Scope of supply: KRASO Casing Type E/FE made of non-corrosive stainless steel V2A, with water pressure-, gas and odour tight, surrounding KRASO 4 Seal and 2 KRASO Covers as installation aid