Universal drainage coupler connecting drainage pipes from 72 to 100mm with the outlet pipe socket by 110mm or with a manhole KDR13

The universal system of couplings for drainage pipes, developed and patented by Karmat, is used to connect drainage pipes of any diameter from 72 to 100 mm. The main advantage of couplings is the ability to connect pipes of all European producers with one system. Changing the supplier of drainage pipes does not require changing the couplings.