Surface exchange for every plate: 0,023 m2 x number of plates . Water amount for every channel: 0,05 lt. x number of plate - max pressure 30barComplanar fittings : 2 x 3/4´M. + 2 x 3/4´M Opposite fittings. On one side:2 x 3/4´ M. On the other side 2 x 3/4´M. + 2 x 3/4´F. For S.008 (shells) see S.017