Standard 1 line of defenceARMOUR Wall 11 Bitumen-CFlexible bitumen coating with a drainage board on the earth faceSpec PackEnhanced 2 lines of defenceARMOUR Wall 12 Bitumen-CWaterproof concrete plus a flexible bitumen coating and drainage boardSpec PackEnhanced 2 lines of defenceARMOUR Wall 42 PolyureaWaterproof concrete plus spray polyurea and a drainage board on the earth faceSpec PackPremium 3 lines of defenceARMOUR Wall 43 PolyureaCrystal concrete, spray polyurea, drainage board and re-injectable jointsSpec Pack