Direct Attachments Chem Link 4" Diameter E-Curb Round - White, F1357WH Mfr. Part # F1357WH Size 4 In.
Module Clamps IronRidge Aire Lock End 30mm-40mm Black, AE-END-01-B1 Mfr. Part # AE-END-01-B1 Range 30-40 mm