Universal external drainage coupler connecting drainage pipes from 72 to 100mm with the bare end of the drainage pipe by 110mm KDR12

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 the couplings is the ability to connect pipes of all European producers using one system. Changing the supplier of drainage pipes does not require changing the couplings.