Register Well HM tongue and groove We have several models of HM register well tongue and groove with prefabricated concrete. Here you can see them and if you are interested or have any doubt, contact us. We advise you Symmetrical Cone Ø 100/60 Ø 120/60 H-80 CM Asymmetric Cone Ø 100/60 H-75 CM Ø 120/60 H-100 CM Measures of Register Well Union Tongue and Groove | Thickness 8 CM | Ø 100 Union Tongue and Groove | Thickness 9 CM | Ø 120