Bed universal installation box easy connect for drain and overflow fittings for free-standing, built-in bathtubs and slightly raised shower trays with minimum bathtub support. Suitable for shower traps with minimum bathtub support. Construction height adjustable: 105 - 205 mm. Can be integrated into the floor structure made of waterproof foam (Piocelan®). Includes lid, pre-assembled flexible hose, HT reduction DN 50/40 short, sealing sleeve, and film adhesive. Note: cannot be combined with the drain fitting. Order no. B574.