R5 basic installation kit with sliding adhesive flange for in-wall mounting of finished installation kits DN 15 with mixing unit, for shower facilities. For connection to pre-mixed hot water or cold water. Franke system box made of plastic, 174 x 225 mm, with lockable connection screws, shell protection, flush connector for flushing and leak test. Continuously-adjustable sliding adhesive flange with form-closed, flexible, 70 mm wide sealing collar. Sealing collar made of water-tight, permanently-elastic, alkali-resistant, and crack-bridging thermoplastic elastomer with polypropylene fleece for connecting to compound seals in dry and wet construction.